86158 ÷ 72 
We're looking to find how many times 72 goes into 86158.

Step 1:
When dividing 8 by 72, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 72

Moving on to step 2:
86 divided by 72 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 14 after subtracting 72 from 86.
Include the next digit (1) from the dividend after 14, then repeat: 141 / 72

Going ahead to step 3:
141 divided by 72 is 1 with a remainder of 69.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 72 from 141 to get 69.
Take the next digit (5) from the dividend and append it to 69, then repeat: 695 / 72

On to step 4:
72 goes into 695 9 times with a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 119.0
Subtract 648 from 695 to get 47.
Append the next digit (8) from the dividend to 47 and continue with: 478 / 72

Advancing to step 5:
The number 72 fits into 478 6 times, leaving a remainder of 46.
The next digit of our result is 6. 
Result so far: 1196.0
The remainder is 46 after subtracting 432 from 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 6:
72 goes into 460 6 times with a remainder of 28.
The next digit of our result is 6. 
Result so far: 1196.6
The remainder is 28 after subtracting 432 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 7:
72 goes into 280 3 times with a remainder of 64.
Put 3 as the next digit of the answer. 
Result so far: 1196.63
If we take 216 away from 280, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 8:
72 can be fit into 640 8 times, resulting in a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 1196.638
Subtracting 576 from 640 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
72 can be fit into 640 8 times, resulting in a remainder of 64.
The number 8 becomes the next digit in our result. 
Result so far: 1196.6388
If we take 576 away from 640, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The quotient of the division is 1196.6388, and the remainder is 0.00064.