21383928 ÷ 635 
Let's see how many times 635 fits into 21383928.

Advancing to step 1:
635 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 635

Advancing to step 2:
21 divided by 635 is 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 635

On to step 3:
The number 635 fits into 213 0 times, leaving a remainder of 213.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 213, we get 213.
Bring next digit (8) of the dividend behind the 213 and repeat the process: 2138 / 635

On to step 4:
635 goes into 2138 3 times with a remainder of 233.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we take 1905 away from 2138, we end up with 233.
Take the next digit (3) from the dividend and append it to 233, then repeat: 2333 / 635

Step 5:
635 can be fit into 2333 3 times, resulting in a remainder of 428.
Write down 3 as next digit of the result. 
Result so far: 33.0
Subtract 1905 from 2333 to get 428.
Include the next digit (9) from the dividend after 428, then repeat: 4289 / 635

Step 6:
4289 divided by 635 is 6 with a remainder of 479.
Put 6 as the next digit of the answer. 
Result so far: 336.0
Subtracting 3810 from 4289 leaves us with 479.
Include the next digit (2) from the dividend after 479, then repeat: 4792 / 635

Advancing to step 7:
635 can be fit into 4792 7 times, resulting in a remainder of 347.
The number 7 becomes the next digit in our result. 
Result so far: 3367.0
Subtracting 4445 from 4792 leaves us with 347.
Fetch the next digit (8) from the dividend, attach it to 347 and continue: 3478 / 635

Going ahead to step 8:
635 can be fit into 3478 5 times, resulting in a remainder of 303.
The number 5 becomes the next digit in our result. 
Result so far: 33675.0
Subtracting 3175 from 3478 leaves us with 303.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3030, and continue the process.

Going ahead to step 9:
635 goes into 3030 4 times with a remainder of 490.
Use 4 as the next digit of our solution. 
Result so far: 33675.4
Deduct 2540 from 3030 and we're left with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 10:
635 goes into 4900 7 times with a remainder of 455.
The next digit of our result is 7. 
Result so far: 33675.47
Subtracting 4445 from 4900 leaves us with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Going ahead to step 11:
4550 divided by 635 is 7 with a remainder of 105.
The number 7 becomes the next digit in our result. 
Result so far: 33675.477
If we subtract 4445 from 4550, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

After the division, we end up with 33675.477 and a remainder of 0.0105.