87686221 divided by 518 
We want to divide 87686221 by 518.

Going ahead to step 1:
The number 518 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 518

On to step 2:
When dividing 87 by 518, we get 0 with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 518

Moving on to step 3:
When dividing 876 by 518, we get 1 with a remainder of 358.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 358 after subtracting 518 from 876.
Take the next digit (8) from the dividend and append it to 358, then repeat: 3588 / 518

Moving on to step 4:
The number 518 fits into 3588 6 times, leaving a remainder of 480.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
The remainder is 480 after subtracting 3108 from 3588.
Fetch the next digit (6) from the dividend, attach it to 480 and continue: 4806 / 518

Step 5:
The number 518 fits into 4806 9 times, leaving a remainder of 144.
Put 9 as the next digit of the answer. 
Result so far: 169.0
Subtract 4662 from 4806 to get 144.
Include the next digit (2) from the dividend after 144, then repeat: 1442 / 518

Advancing to step 6:
The number 518 fits into 1442 2 times, leaving a remainder of 406.
Use 2 as the next digit of our solution. 
Result so far: 1692.0
Deduct 1036 from 1442 and we're left with 406.
Fetch the next digit (2) from the dividend, attach it to 406 and continue: 4062 / 518

Advancing to step 7:
4062 divided by 518 is 7 with a remainder of 436.
The number 7 becomes the next digit in our result. 
Result so far: 16927.0
Deduct 3626 from 4062 and we're left with 436.
Fetch the next digit (1) from the dividend, attach it to 436 and continue: 4361 / 518

Moving on to step 8:
If we divide 4361 by 518, we get 8 and a remainder of 217.
Record the quotient 8 as the next digit in the result. 
Result so far: 169278.0
Subtracting 4144 from 4361 leaves us with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Advancing to step 9:
When dividing 2170 by 518, we get 4 with a remainder of 98.
Use 4 as the next digit of our solution. 
Result so far: 169278.4
If we take 2072 away from 2170, we end up with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

On to step 10:
980 divided by 518 is 1 with a remainder of 462.
Use 1 as the next digit of our solution. 
Result so far: 169278.41
The remainder is 462 after subtracting 518 from 980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Let's proceed to step 11:
When dividing 4620 by 518, we get 8 with a remainder of 476.
Put 8 as the next digit of the answer. 
Result so far: 169278.418
The remainder is 476 after subtracting 4144 from 4620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Advancing to step 12:
If we divide 4760 by 518, we get 9 and a remainder of 98.
Record the quotient 9 as the next digit in the result. 
Result so far: 169278.4189
The remainder is 98 after subtracting 4662 from 4760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Going ahead to step 13:
518 can be fit into 980 1 times, resulting in a remainder of 462.
Record the quotient 1 as the next digit in the result. 
Result so far: 169278.41891
Subtract 518 from 980 to get 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

Moving on to step 14:
4620 divided by 518 is 8 with a remainder of 476.
Record the quotient 8 as the next digit in the result. 
Result so far: 169278.418918
Subtract 4144 from 4620 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Advancing to step 15:
When dividing 4760 by 518, we get 9 with a remainder of 98.
Record the quotient 9 as the next digit in the result. 
Result so far: 169278.4189189
If we take 4662 away from 4760, we end up with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Let's proceed to step 16:
The number 518 fits into 980 1 times, leaving a remainder of 462.
Record the quotient 1 as the next digit in the result. 
Result so far: 169278.41891891
The remainder is 462 after subtracting 518 from 980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

The final result is 169278.41891891 with a remainder of 4.62e-07.