Find each quotient without using a calculator.  

1. $42.5\div1.5$ 

   Answer (a):

   $28.\overline{3}$

2. $589.2\div16$ 

   Hint (b):

   $\left. \begin{array} { c } \quad \ \ {36.?}\\{ 16 \longdiv { 589.2 } } \\ \ - 480 \downarrow \\\hline \ \ \ \ \ \ 109 \ \downarrow \\ \ \ \ \ {- 96 }\ \downarrow \\ \hline \ \ \ \ \ \ ? \\ \ \ \ -?\\\hline \qquad ?\end{array} \right.$