Answer
$1001000_2$
Work Step by Step
$2|\underline{72}\ \ remainders$
$2|\underline{36}\ \ \ \ \ \ \ \ \ 0$
$2|\underline{18}\ \ \ \ \ \ \ \ \ 0$
$2|\underline9\ \ \ \ \ \ \ \ \ \ 0$
$2|\underline4\ \ \ \ \ \ \ \ \ \ 1$
$2|\underline2\ \ \ \ \ \ \ \ \ \ 0$
$2|\underline1\ \ \ \ \ \ \ \ \ \ 0$
$\ \ \ \,0\ \ \ \ \ \ \ \ \ \ \ 1$ $\ \ \ \uparrow$ read digits up
