What is the answer for this solution?

Convert to a mixed number:
13/3

Divide 13 by 3:
3 | 1 | 3

3 goes into 13 at most 4 times:
 | | 4
3 | 1 | 3
- | 1 | 2
 | | 1

Read off the results. The quotient is the number at the top and the remainder is the number at the bottom:
 | | 4 | (quotient)
3 | 1 | 3 | 
- | 1 | 2 | 
 | | 1 | (remainder)

The quotient of 13/3 is 4 with remainder 1, so:
  4 1/3