81158 ÷ 7 = 11594 R0
Alright, let's work through the division of 81158 by 7 step by step.

Step 1:
7 goes into 8 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 7 from 8 to get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 7

Step 2:
7 goes into 11 1 times with a remainder of 4.
Write down 1 as next digit of of the result. 
Result so far: 11
Subtract 7 from 11 to get 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 7

Step 3:
7 goes into 41 5 times with a remainder of 6.
Write down 5 as next digit of of the result. 
Result so far: 115
Subtract 35 from 41 to get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 7

Step 4:
7 goes into 65 9 times with a remainder of 2.
Write down 9 as next digit of of the result. 
Result so far: 1159
Subtract 63 from 65 to get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 7

Step 5:
7 goes into 28 4 times with a remainder of 0.
Write down 4 as next digit of of the result. 
Result so far: 11594
Subtract 28 from 28 to get 0.

The final result is 11594 with a remainder of 0.