Long division display

Question

\documentclass[12pt]{article}

\pagestyle{empty}

\begin{document}

$$
\begin{array}{cccccccc}
& & & 1 & 0 & 9 & 8 & 9 \\
13 & ) & 1 & 4 & 2 & 8 & 5 & 9 \\
& & 1 & 3 \\  \\
& & & 1 & 2 \\
& & &   & 0 \\  \\
& & & 1 & 2 & 8 \\
& & & 1 & 1 & 7 \\  \\
& & &   & 1 & 1 & 5 \\
& & &   & 1 & 0 & 4 \\  \\
& & &   &   & 1 & 1 & 9 \\
& & &   &   & 1 & 1 & 7 \\  \\
& & &   &   &   &   & 2
\end{array}
$$

\end{document}

We all learned in elementary school how to do long division. In standard usage one draws a horizontal line beginning at the top of the right parenthesis and underlining the digits in the quotient, but ending there rather than crossing the whole page; then one underlines the digits of each of the numbers being subtracted, again not extending the underline across the page, nor even across the whole width of the displayed mathematical notation.

I don't know how to make an underline crossing alignment tabs but underlining only the digits rather than extending across the whole width.

How can that be done? Whoever typesets books on arithmetic must have some way to do that.

Answer 1

You want to do it hard way?. Use xlop

\documentclass[12pt]{article}

\usepackage{xlop}

\begin{document}
\opdiv[displayintermediary=all,voperation=top]
{142859}{13}

\end{document}