158691 ÷ 8 
We're looking to find how many times 8 goes into 158691.

Advancing to step 1:
The number 8 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 8

Let's proceed to step 2:
15 divided by 8 is 1 with a remainder of 7.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 8 from 15 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 8

Step 3:
The number 8 fits into 78 9 times, leaving a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 19.0
Subtract 72 from 78 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 8

On to step 4:
When dividing 66 by 8, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 198.0
Subtracting 64 from 66 leaves us with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 8

Moving on to step 5:
The number 8 fits into 29 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 1983.0
The remainder is 5 after subtracting 24 from 29.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 8

Going ahead to step 6:
When dividing 51 by 8, we get 6 with a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 19836.0
Subtract 48 from 51 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
8 can be fit into 30 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 19836.3
Deduct 24 from 30 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
When dividing 60 by 8, we get 7 with a remainder of 4.
Record the quotient 7 as the next digit in the result. 
Result so far: 19836.37
If we subtract 56 from 60, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
8 goes into 40 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 19836.375
Subtract 40 from 40 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
8 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 19836.375
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
The number 8 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 19836.375
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 19836.375 with a remainder of 0.0.