We divide 12180139 by 681
We want to divide 12180139 by 681.

Let's proceed to step 1:
When dividing 1 by 681, we get 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 681

On to step 2:
When dividing 12 by 681, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 681

Moving on to step 3:
681 goes into 121 0 times with a remainder of 121.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 121 after subtracting 0 from 121.
Bring next digit (8) of the dividend behind the 121 and repeat the process: 1218 / 681

Moving on to step 4:
When dividing 1218 by 681, we get 1 with a remainder of 537.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 681 from 1218, we get 537.
Bring next digit (0) of the dividend behind the 537 and repeat the process: 5370 / 681

Moving on to step 5:
5370 divided by 681 is 7 with a remainder of 603.
The next digit of our result is 7. 
Result so far: 17.0
The remainder is 603 after subtracting 4767 from 5370.
Append the next digit (1) from the dividend to 603 and continue with: 6031 / 681

Step 6:
If we divide 6031 by 681, we get 8 and a remainder of 583.
Write down 8 as next digit of the result. 
Result so far: 178.0
The remainder is 583 after subtracting 5448 from 6031.
Bring next digit (3) of the dividend behind the 583 and repeat the process: 5833 / 681

Let's proceed to step 7:
681 can be fit into 5833 8 times, resulting in a remainder of 385.
The number 8 becomes the next digit in our result. 
Result so far: 1788.0
Subtracting 5448 from 5833 leaves us with 385.
Fetch the next digit (9) from the dividend, attach it to 385 and continue: 3859 / 681

Let's proceed to step 8:
681 goes into 3859 5 times with a remainder of 454.
The number 5 becomes the next digit in our result. 
Result so far: 17885.0
The remainder is 454 after subtracting 3405 from 3859.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Let's proceed to step 9:
681 goes into 4540 6 times with a remainder of 454.
Use 6 as the next digit of our solution. 
Result so far: 17885.6
The remainder is 454 after subtracting 4086 from 4540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

Moving on to step 10:
The number 681 fits into 4540 6 times, leaving a remainder of 454.
The number 6 becomes the next digit in our result. 
Result so far: 17885.66
Deduct 4086 from 4540 and we're left with 454.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4540, and continue the process.

After the division, we end up with 17885.66 and a remainder of 0.454.