34131 ÷ 8 = 4266 R3
Let's divide 34131 by 8.

Step 1:
8 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 3 to get 3.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 8

Step 2:
8 goes into 34 4 times with a remainder of 2.
Write down 4 as next digit of of the result. 
Result so far: 4
Subtract 32 from 34 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 8

Step 3:
8 goes into 21 2 times with a remainder of 5.
Write down 2 as next digit of of the result. 
Result so far: 42
Subtract 16 from 21 to get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 8

Step 4:
8 goes into 53 6 times with a remainder of 5.
Write down 6 as next digit of of the result. 
Result so far: 426
Subtract 48 from 53 to get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 8

Step 5:
8 goes into 51 6 times with a remainder of 3.
Write down 6 as next digit of of the result. 
Result so far: 4266
Subtract 48 from 51 to get 3.

The final result is 4266 with a remainder of 3.