longdivision-rtl2

W3C sample WIRIS
7 28 201 14 61 56 5 
<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mlongdiv longdivstyle="lefttop">
    <mn>7</mn>
    <mn>28</mn>
    <msgroup>
      <mn>201</mn>
      <msrow position="1">
        <mn>14</mn>
      </msrow>
    </msgroup>
    <msline length="2" position="1"/>
    <msgroup>
      <mn>61</mn>
      <mn>56</mn>
      <msline length="2"/>
    </msgroup>
    <mtext>5</mtext>
  </mlongdiv>
</math>

Author: Abdelshafi Bekhit, The book title is 'Precalculus Mathematics' 2nd Edition.