23157 ÷ 8 = 2894 R5
Alright, let's work through the division of 23157 by 8 step by step.

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 (1) of the dividend behind the 7 and repeat the process: 71 / 8

Step 3:
8 goes into 71 8 times with a remainder of 7.
Write down 8 as next digit of of the result. 
Result so far: 28
Subtract 64 from 71 to get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 8

Step 4:
8 goes into 75 9 times with a remainder of 3.
Write down 9 as next digit of of the result. 
Result so far: 289
Subtract 72 from 75 to get 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 8

Step 5:
8 goes into 37 4 times with a remainder of 5.
Write down 4 as next digit of of the result. 
Result so far: 2894
Subtract 32 from 37 to get 5.

The final result is 2894 with a remainder of 5.