71 times with a remainder of 1
70 times :)
64 times (640 ÷ 10 = 64).
6 times with four remainders
640 ÷ 8 = 80.
640/4 = 160
640 ÷ 8 = 80
640 ÷ 16 = 40
Thirteen times with a remainder.
Exactly 5 times with no remainder
5 times, remainder 6
64 times.
71.1111 times.