64 ÷ 5 = 12 R4
No problem, we've got 64 and 5 for the division.

Step 1:
5 goes into 6 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 6 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 5

Step 2:
5 goes into 14 2 times with a remainder of 4.
Write down 2 as next digit of of the result. 
Result so far: 12
Subtract 10 from 14 to get 4.

The final result is 12 with a remainder of 4.