some

rec-enclose1

131 divided into 14131 as a US-style long division problem

W3C sample	WIRIS
	$\begin{matrix} 10 \\ 131 & 1413 \\ \underset{̲}{131} \\ 103 \end{matrix}$

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mtable columnspacing="0px" rowspacing="2px">
    <mtr>
      <mtd/>
      <mtd columnalign="right">
        <mn>10</mn>
      </mtd>
    </mtr>
    <mtr>
      <mtd columnalign="right">
        <mn>131</mn>
      </mtd>
      <mtd columnalign="right">
        <menclose notation="longdiv">
          <mn>1413</mn>
        </menclose>
      </mtd>
    </mtr>
    <mtr>
      <mtd/>
      <mtd columnalign="right">
        <mrow>
          <munder>
            <mn>131</mn>
            <mo> &#x0332;</mo>
          </munder>
          <mphantom>
            <mn>3</mn>
          </mphantom>
        </mrow>
      </mtd>
    </mtr>
    <mtr>
      <mtd/>
      <mtd columnalign="right">
        <mn>103</mn>
      </mtd>
    </mtr>
  </mtable>
</math>

Author: MathML 2 Recommentation