Let's divide 21140404 by 639
We want to divide 21140404 by 639.

Step 1:
If we divide 2 by 639, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 639

Moving on to step 2:
21 divided by 639 is 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 639

Going ahead to step 3:
If we divide 211 by 639, we get 0 and a remainder of 211.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 211, we get 211.
Fetch the next digit (4) from the dividend, attach it to 211 and continue: 2114 / 639

On to step 4:
639 can be fit into 2114 3 times, resulting in a remainder of 197.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 1917 from 2114, we get 197.
Include the next digit (0) from the dividend after 197, then repeat: 1970 / 639

On to step 5:
1970 divided by 639 is 3 with a remainder of 53.
Write down 3 as next digit of the result. 
Result so far: 33.0
Subtracting 1917 from 1970 leaves us with 53.
Take the next digit (4) from the dividend and append it to 53, then repeat: 534 / 639

Advancing to step 6:
When dividing 534 by 639, we get 0 with a remainder of 534.
The number 0 becomes the next digit in our result. 
Result so far: 330.0
If we subtract 0 from 534, we get 534.
Take the next digit (0) from the dividend and append it to 534, then repeat: 5340 / 639

Step 7:
When dividing 5340 by 639, we get 8 with a remainder of 228.
The number 8 becomes the next digit in our result. 
Result so far: 3308.0
Deduct 5112 from 5340 and we're left with 228.
Bring next digit (4) of the dividend behind the 228 and repeat the process: 2284 / 639

Moving on to step 8:
2284 divided by 639 is 3 with a remainder of 367.
The next digit of our result is 3. 
Result so far: 33083.0
Subtracting 1917 from 2284 leaves us with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Step 9:
639 goes into 3670 5 times with a remainder of 475.
Record the quotient 5 as the next digit in the result. 
Result so far: 33083.5
Deduct 3195 from 3670 and we're left with 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Step 10:
4750 divided by 639 is 7 with a remainder of 277.
The number 7 becomes the next digit in our result. 
Result so far: 33083.57
Deduct 4473 from 4750 and we're left with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Advancing to step 11:
639 goes into 2770 4 times with a remainder of 214.
Write down 4 as next digit of the result. 
Result so far: 33083.574
Subtract 2556 from 2770 to get 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Let's proceed to step 12:
2140 divided by 639 is 3 with a remainder of 223.
Put 3 as the next digit of the answer. 
Result so far: 33083.5743
The remainder is 223 after subtracting 1917 from 2140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

On to step 13:
The number 639 fits into 2230 3 times, leaving a remainder of 313.
Record the quotient 3 as the next digit in the result. 
Result so far: 33083.57433
Subtract 1917 from 2230 to get 313.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3130, and continue the process.

The quotient of the division is 33083.57433, and the remainder is 0.000313.