We look at the division of 12304086 by 991 
We're looking to find how many times 991 goes into 12304086.

Moving on to step 1:
1 divided by 991 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 991

Going ahead to step 2:
12 divided by 991 is 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 12, we end up with 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 991

On to step 3:
123 divided by 991 is 0 with a remainder of 123.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 123 leaves us with 123.
Append the next digit (0) from the dividend to 123 and continue with: 1230 / 991

Let's proceed to step 4:
If we divide 1230 by 991, we get 1 and a remainder of 239.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 991 from 1230 and we're left with 239.
Fetch the next digit (4) from the dividend, attach it to 239 and continue: 2394 / 991

On to step 5:
991 can be fit into 2394 2 times, resulting in a remainder of 412.
Write down 2 as next digit of the result. 
Result so far: 12.0
The remainder is 412 after subtracting 1982 from 2394.
Grab the next digit (0) from the dividend, add it to 412, then carry on: 4120 / 991

Advancing to step 6:
4120 divided by 991 is 4 with a remainder of 156.
The number 4 becomes the next digit in our result. 
Result so far: 124.0
Subtracting 3964 from 4120 leaves us with 156.
Take the next digit (8) from the dividend and append it to 156, then repeat: 1568 / 991

On to step 7:
991 goes into 1568 1 times with a remainder of 577.
The next digit of our result is 1. 
Result so far: 1241.0
Subtract 991 from 1568 to get 577.
Grab the next digit (6) from the dividend, add it to 577, then carry on: 5776 / 991

Going ahead to step 8:
If we divide 5776 by 991, we get 5 and a remainder of 821.
The next digit of our result is 5. 
Result so far: 12415.0
If we take 4955 away from 5776, we end up with 821.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8210, and continue the process.

Step 9:
The number 991 fits into 8210 8 times, leaving a remainder of 282.
Record the quotient 8 as the next digit in the result. 
Result so far: 12415.8
The remainder is 282 after subtracting 7928 from 8210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Advancing to step 10:
When dividing 2820 by 991, we get 2 with a remainder of 838.
Use 2 as the next digit of our solution. 
Result so far: 12415.82
Deduct 1982 from 2820 and we're left with 838.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8380, and continue the process.

Going ahead to step 11:
991 goes into 8380 8 times with a remainder of 452.
The number 8 becomes the next digit in our result. 
Result so far: 12415.828
If we take 7928 away from 8380, we end up with 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Advancing to step 12:
When dividing 4520 by 991, we get 4 with a remainder of 556.
Use 4 as the next digit of our solution. 
Result so far: 12415.8284
Deduct 3964 from 4520 and we're left with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Going ahead to step 13:
When dividing 5560 by 991, we get 5 with a remainder of 605.
Write down 5 as next digit of the result. 
Result so far: 12415.82845
Deduct 4955 from 5560 and we're left with 605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

Advancing to step 14:
The number 991 fits into 6050 6 times, leaving a remainder of 104.
Use 6 as the next digit of our solution. 
Result so far: 12415.828456
If we take 5946 away from 6050, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 15:
The number 991 fits into 1040 1 times, leaving a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 12415.8284561
If we take 991 away from 1040, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 16:
If we divide 490 by 991, we get 0 and a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 12415.8284561
If we take 0 away from 490, we end up with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

The final outcome is 12415.8284561, with a leftover of 4.9e-07.