3
Exactly 13 times
4, remainder 4
13 times with 4 remainder.
4 goes into 52 13 times without a remainder 4 x 13 = 52
4 times with a remainder of 13
13 times... with a remainder of 4.
Three times (3.6154)
It can go 12 times.
4
4
13 times with 4 remaining 212 - 4 = 208 = 13 x 16
20, remainder 4