We look at the division of 91661 by 8 
We want to figure out the number of times 91661 can be divided by 8.

Advancing to step 1:
The number 8 fits into 9 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 8 from 9 and we're left with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 8

Advancing to step 2:
If we divide 11 by 8, we get 1 and a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 3 after subtracting 8 from 11.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 8

Going ahead to step 3:
36 divided by 8 is 4 with a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 114.0
The remainder is 4 after subtracting 32 from 36.
Bring next digit (6) of the dividend behind the 4 and repeat the process: 46 / 8

Step 4:
When dividing 46 by 8, we get 5 with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 1145.0
Subtract 40 from 46 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 8

Advancing to step 5:
61 divided by 8 is 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 11457.0
The remainder is 5 after subtracting 56 from 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 6:
If we divide 50 by 8, we get 6 and a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 11457.6
If we take 48 away from 50, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 8, we get 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 11457.62
If we take 16 away from 20, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
8 can be fit into 40 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 11457.625
Deduct 40 from 40 and we're left 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.

Moving on to step 9:
8 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11457.625
Deduct 0 from 0 and we're left 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.

Let's proceed to step 10:
If we divide 0 by 8, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11457.625
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.

The quotient of the division is 11457.625, and the remainder is 0.0.