Four times exactly !
80
Eight times.
320/2 = 160 times.It goes: 320/2 = 160 times
12
40 times.
Exactly 64 times
36 goes into 320 about 8.89 times or 8 with remainder 32.
It is: 320/16 = 20
320 times with a remainder of 2
Ten times with a remainder of 20
64