Qfyilyi

Original thread. I want to make the long division represented with floating point, but i have strange results. The numbers are not aligned (with yellow). And some numbers are far away(red).

documentclass{article}

usepackage[TABcline]{tabstackengine}

TABstackMath

renewcommandstackalignment{l}

newcommandlminus{llap{$-$}}

{catcode`-=active

gdef -{lminus}}

newcommandminusactive{phantom{-}catcode`-=active}

setstacktabbedgap{3pt}

begin{document}

begin{tabular}{ll@{hspace{10ex}}c}



    $

    minusactive

    tabbedShortunderstack[r]{

        &7,&6&2&4&:4=1,815\

        -&4&& &&&\

        TABcline{2,3}

        & &3&2&&&&\

        &-&3&2&&&&\

        TABcline{3,4} 

        & & & &6& &&\

        & & &-&4& &&\

        TABcline{5} 

        & & & & 2&0&\

        & & & -& 2&0&\

        TABcline{5}

        & & & &0&

    }

    $



end{tabular}

end{document}

Like this?

documentclass{article}

usepackage[TABcline]{tabstackengine}

TABstackMath

renewcommandstackalignment{l}

newcommandlminus{llap{$-$}}

{catcode`-=active

gdef -{lminus}}

newcommandminusactive{phantom{-}catcode`-=active}

setstacktabbedgap{3pt}



begin{document}



begin{tabular}{ll@{hspace{10ex}}c}

    $

    minusactive

    tabbedShortunderstack[r]{

        &7rlap{,}&6&2&4&:4=1,815\

        -&4&& &&&\

        TABcline{2,3}

        & &3&2&&&&\

        &-&3&2&&&&\

        TABcline{3,4}

        & & & &6& &&\

        & & &-&4& &&\

        TABcline{5}

        & & & & 2rlap{$; 0 $}&&\

        & & & -& 2rlap{$; 0 $}&&\

        TABcline{5}

        & & & &0&

    }

    $

end{tabular}



end{document} 

If you don't need to show the thousands-separator symbol (here: ,), the layout becomes much easier, and the typographic problem can be solved using just an array environment.

documentclass{article}

usepackage{array} % for 'newcolumntype' macro

newcolumntype{C}{>{{}}c<{{}}}

usepackage{mathtools} % for 'mathllap' macro

begin{document}

[

setlengtharraycolsep{0.5pt} % default: 5pt

begin{array}[t]{@{} C @{} *{4}{c} CcC *{4}{c} @{}}

 &7&6&2&4 &:&4&=& 1&9&0&6\

-&4      \ cline{2-2}

 &3&6    \

-&3&6    \ cline{2-3}

 & &0&2  \

 & &mathllap{-}&0  \ cline{4-4}

 & & &2&4\

 & &mathllap{-}&2&4\ cline{4-5}

 & & & &0rlap{.}    % "rlap{.}" is optional

\ cline{5-5} % optional

end{array}

qquad

begin{array}[t]{@{} C @{} *{4}{c} CcC *{4}{c} @{}}

 &7&2&6&0 &:&4&=& 1&8&1&5\

-&4      \ cline{2-2}

 &3&2    \

-&3&2    \ cline{2-3}

 & &0&6  \

 & &mathllap{-}&4  \ cline{4-4}

 & & &2&0\

 & &mathllap{-}&2&0\ cline{4-5}

 & & & &0rlap{.}    % "rlap{.}" is optional

\ cline{5-5} % optional

end{array}

]

end{document}