We look at the division of 21067240 by 518 
We want to divide 21067240 by 518.

Let's proceed to step 1:
The number 518 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 518

On to step 2:
The number 518 fits into 21 0 times, leaving a remainder of 21.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 518

Step 3:
The number 518 fits into 210 0 times, leaving a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 210 to get 210.
Fetch the next digit (6) from the dividend, attach it to 210 and continue: 2106 / 518

Let's proceed to step 4:
2106 divided by 518 is 4 with a remainder of 34.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 2072 away from 2106, we end up with 34.
Append the next digit (7) from the dividend to 34 and continue with: 347 / 518

On to step 5:
347 divided by 518 is 0 with a remainder of 347.
The number 0 becomes the next digit in our result. 
Result so far: 40.0
Deduct 0 from 347 and we're left with 347.
Grab the next digit (2) from the dividend, add it to 347, then carry on: 3472 / 518

Step 6:
When dividing 3472 by 518, we get 6 with a remainder of 364.
The next digit of our result is 6. 
Result so far: 406.0
Subtracting 3108 from 3472 leaves us with 364.
Take the next digit (4) from the dividend and append it to 364, then repeat: 3644 / 518

Moving on to step 7:
If we divide 3644 by 518, we get 7 and a remainder of 18.
The next digit of our result is 7. 
Result so far: 4067.0
Subtracting 3626 from 3644 leaves us with 18.
Fetch the next digit (0) from the dividend, attach it to 18 and continue: 180 / 518

Let's proceed to step 8:
180 divided by 518 is 0 with a remainder of 180.
Put 0 as the next digit of the answer. 
Result so far: 40670.0
Deduct 0 from 180 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 9:
When dividing 1800 by 518, we get 3 with a remainder of 246.
Use 3 as the next digit of our solution. 
Result so far: 40670.3
The remainder is 246 after subtracting 1554 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Advancing to step 10:
518 can be fit into 2460 4 times, resulting in a remainder of 388.
Write down 4 as next digit of the result. 
Result so far: 40670.34
Subtracting 2072 from 2460 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

On to step 11:
The number 518 fits into 3880 7 times, leaving a remainder of 254.
Record the quotient 7 as the next digit in the result. 
Result so far: 40670.347
Subtracting 3626 from 3880 leaves us with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

On to step 12:
2540 divided by 518 is 4 with a remainder of 468.
Record the quotient 4 as the next digit in the result. 
Result so far: 40670.3474
Deduct 2072 from 2540 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Moving on to step 13:
518 goes into 4680 9 times with a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 40670.34749
If we take 4662 away from 4680, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 14:
When dividing 180 by 518, we get 0 with a remainder of 180.
Record the quotient 0 as the next digit in the result. 
Result so far: 40670.34749
Subtracting 0 from 180 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 15:
If we divide 1800 by 518, we get 3 and a remainder of 246.
Use 3 as the next digit of our solution. 
Result so far: 40670.3474903
If we subtract 1554 from 1800, we get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

On to step 16:
The number 518 fits into 2460 4 times, leaving a remainder of 388.
Record the quotient 4 as the next digit in the result. 
Result so far: 40670.34749034
Subtract 2072 from 2460 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

The final outcome is 40670.34749034, with a leftover of 3.88e-07.