23508 ÷ 8 = 2938 R4
Let's divide 23508 by 8.

Step 1:
8 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 2 to get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 8

Step 2:
8 goes into 23 2 times with a remainder of 7.
Write down 2 as next digit of of the result. 
Result so far: 2
Subtract 16 from 23 to get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 8

Step 3:
8 goes into 75 9 times with a remainder of 3.
Write down 9 as next digit of of the result. 
Result so far: 29
Subtract 72 from 75 to get 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 8

Step 4:
8 goes into 30 3 times with a remainder of 6.
Write down 3 as next digit of of the result. 
Result so far: 293
Subtract 24 from 30 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 8

Step 5:
8 goes into 68 8 times with a remainder of 4.
Write down 8 as next digit of of the result. 
Result so far: 2938
Subtract 64 from 68 to get 4.

The final result is 2938 with a remainder of 4.