16
16 times.
4 goes into 64 exactly 16 times
64 times with a remainder of 4
64 goes into 256 four times. This can be calculated by dividing 256 by 64, which equals 4. In other words, 64 multiplied by 4 equals 256.
Five times with a remainder of four
4 times, with 64 left over.
4 times with 39 remainder
3 times with a remainder of 33
12 with 4 remainder
4 with remainder 3.
4 R 5