We're dividing 12019915 by 866 
Our goal is to divide 12019915 by 866.

Let's proceed to step 1:
When dividing 1 by 866, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 866

Let's proceed to step 2:
If we divide 12 by 866, we get 0 and a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 866

Advancing to step 3:
120 divided by 866 is 0 with a remainder of 120.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 120 and we're left with 120.
Grab the next digit (1) from the dividend, add it to 120, then carry on: 1201 / 866

On to step 4:
866 goes into 1201 1 times with a remainder of 335.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 866 from 1201, we get 335.
Append the next digit (9) from the dividend to 335 and continue with: 3359 / 866

Going ahead to step 5:
866 goes into 3359 3 times with a remainder of 761.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 2598 away from 3359, we end up with 761.
Append the next digit (9) from the dividend to 761 and continue with: 7619 / 866

Let's proceed to step 6:
If we divide 7619 by 866, we get 8 and a remainder of 691.
Put 8 as the next digit of the answer. 
Result so far: 138.0
If we take 6928 away from 7619, we end up with 691.
Grab the next digit (1) from the dividend, add it to 691, then carry on: 6911 / 866

Advancing to step 7:
The number 866 fits into 6911 7 times, leaving a remainder of 849.
The number 7 becomes the next digit in our result. 
Result so far: 1387.0
Subtracting 6062 from 6911 leaves us with 849.
Fetch the next digit (5) from the dividend, attach it to 849 and continue: 8495 / 866

Advancing to step 8:
If we divide 8495 by 866, we get 9 and a remainder of 701.
The number 9 becomes the next digit in our result. 
Result so far: 13879.0
If we subtract 7794 from 8495, we get 701.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7010, and continue the process.

Going ahead to step 9:
The number 866 fits into 7010 8 times, leaving a remainder of 82.
The next digit of our result is 8. 
Result so far: 13879.8
Subtract 6928 from 7010 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 10:
820 divided by 866 is 0 with a remainder of 820.
The next digit of our result is 0. 
Result so far: 13879.8
Deduct 0 from 820 and we're left with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Moving on to step 11:
866 can be fit into 8200 9 times, resulting in a remainder of 406.
The next digit of our result is 9. 
Result so far: 13879.809
If we take 7794 away from 8200, we end up with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Let's proceed to step 12:
866 can be fit into 4060 4 times, resulting in a remainder of 596.
Write down 4 as next digit of the result. 
Result so far: 13879.8094
Subtracting 3464 from 4060 leaves us with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Let's proceed to step 13:
When dividing 5960 by 866, we get 6 with a remainder of 764.
Use 6 as the next digit of our solution. 
Result so far: 13879.80946
Subtracting 5196 from 5960 leaves us with 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

Advancing to step 14:
When dividing 7640 by 866, we get 8 with a remainder of 712.
The number 8 becomes the next digit in our result. 
Result so far: 13879.809468
Subtracting 6928 from 7640 leaves us with 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Let's proceed to step 15:
7120 divided by 866 is 8 with a remainder of 192.
Record the quotient 8 as the next digit in the result. 
Result so far: 13879.8094688
Subtract 6928 from 7120 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Our division results in 13879.8094688 with a remaining 1.92e-06.