let's firstly convert the mixed fractions to improper, and then divide.
[tex]\bf \stackrel{mixed}{10\frac{2}{7}}\implies \cfrac{10\cdot 7+2}{7}\implies \stackrel{improper}{\cfrac{72}{7}}~\hfill \stackrel{mixed}{4\frac{4}{11}}\implies \cfrac{4\cdot 11+4}{4}\implies \stackrel{improper}{\cfrac{48}{11}}\\\\[-0.35em]\rule{34em}{0.25pt}\\\\-\cfrac{72}{7}\div -\cfrac{48}{11}\implies -\cfrac{72}{7}\cdot -\cfrac{11}{48}\implies \cfrac{72}{48}\cdot \cfrac{11}{7}\implies \cfrac{3}{2}\cdot \cfrac{11}{7}\implies \cfrac{33}{14}\implies 2\frac{5}{14}[/tex]
