21299881 divided by 518 
We want to figure out the number of times 21299881 can be divided by 518.

On to step 1:
When dividing 2 by 518, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 518

Going ahead to step 2:
518 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Fetch the next digit (2) from the dividend, attach it to 21 and continue: 212 / 518

Let's proceed to step 3:
The number 518 fits into 212 0 times, leaving a remainder of 212.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 212, we end up with 212.
Bring next digit (9) of the dividend behind the 212 and repeat the process: 2129 / 518

On to step 4:
The number 518 fits into 2129 4 times, leaving a remainder of 57.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 2072 from 2129 to get 57.
Include the next digit (9) from the dividend after 57, then repeat: 579 / 518

Moving on to step 5:
518 can be fit into 579 1 times, resulting in a remainder of 61.
Put 1 as the next digit of the answer. 
Result so far: 41.0
If we subtract 518 from 579, we get 61.
Grab the next digit (8) from the dividend, add it to 61, then carry on: 618 / 518

Step 6:
When dividing 618 by 518, we get 1 with a remainder of 100.
Write down 1 as next digit of the result. 
Result so far: 411.0
Subtract 518 from 618 to get 100.
Take the next digit (8) from the dividend and append it to 100, then repeat: 1008 / 518

Moving on to step 7:
1008 divided by 518 is 1 with a remainder of 490.
Write down 1 as next digit of the result. 
Result so far: 4111.0
Subtract 518 from 1008 to get 490.
Append the next digit (1) from the dividend to 490 and continue with: 4901 / 518

Moving on to step 8:
The number 518 fits into 4901 9 times, leaving a remainder of 239.
Record the quotient 9 as the next digit in the result. 
Result so far: 41119.0
Deduct 4662 from 4901 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Going ahead to step 9:
518 goes into 2390 4 times with a remainder of 318.
The number 4 becomes the next digit in our result. 
Result so far: 41119.4
Subtracting 2072 from 2390 leaves us with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

On to step 10:
If we divide 3180 by 518, we get 6 and a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 41119.46
Subtract 3108 from 3180 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 11:
When dividing 720 by 518, we get 1 with a remainder of 202.
Record the quotient 1 as the next digit in the result. 
Result so far: 41119.461
Deduct 518 from 720 and we're left with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Going ahead to step 12:
2020 divided by 518 is 3 with a remainder of 466.
The next digit of our result is 3. 
Result so far: 41119.4613
Deduct 1554 from 2020 and we're left with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

On to step 13:
518 can be fit into 4660 8 times, resulting in a remainder of 516.
Write down 8 as next digit of the result. 
Result so far: 41119.46138
Subtract 4144 from 4660 to get 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Advancing to step 14:
5160 divided by 518 is 9 with a remainder of 498.
Write down 9 as next digit of the result. 
Result so far: 41119.461389
Subtract 4662 from 5160 to get 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Going ahead to step 15:
518 can be fit into 4980 9 times, resulting in a remainder of 318.
Write down 9 as next digit of the result. 
Result so far: 41119.4613899
If we subtract 4662 from 4980, we get 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Our division results in 41119.4613899 with a remaining 3.18e-06.