We divide 99661 by 8
Our goal is to divide 99661 by 8.

Let's proceed to step 1:
8 goes into 9 1 times with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 8 away from 9, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 8

Going ahead to step 2:
8 goes into 19 2 times with a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 3 after subtracting 16 from 19.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 8

Advancing to step 3:
8 can be fit into 36 4 times, resulting in a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
Subtract 32 from 36 to get 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 8

Moving on to step 4:
8 goes into 46 5 times with a remainder of 6.
The next digit of our result is 5. 
Result so far: 1245.0
The remainder is 6 after subtracting 40 from 46.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 8

Let's proceed to step 5:
8 goes into 61 7 times with a remainder of 5.
The number 7 becomes the next digit in our result. 
Result so far: 12457.0
Subtract 56 from 61 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 6:
8 goes into 50 6 times with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 12457.6
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.

Let's proceed to step 7:
When dividing 20 by 8, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 12457.62
Subtract 16 from 20 to 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.

Moving on to step 8:
If we divide 40 by 8, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 12457.625
Subtracting 40 from 40 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.

On to step 9:
8 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12457.625
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.

Step 10:
When dividing 0 by 8, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12457.625
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.

After the division, we end up with 12457.625 and a remainder of 0.0.