Let's divide 21840357 by 443
We want to figure out the number of times 21840357 can be divided by 443.

On to step 1:
443 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 443

On to step 2:
21 divided by 443 is 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 443

Moving on to step 3:
218 divided by 443 is 0 with a remainder of 218.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 218 leaves us with 218.
Append the next digit (4) from the dividend to 218 and continue with: 2184 / 443

Advancing to step 4:
The number 443 fits into 2184 4 times, leaving a remainder of 412.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 1772 from 2184, we get 412.
Include the next digit (0) from the dividend after 412, then repeat: 4120 / 443

Moving on to step 5:
When dividing 4120 by 443, we get 9 with a remainder of 133.
The next digit of our result is 9. 
Result so far: 49.0
Subtract 3987 from 4120 to get 133.
Include the next digit (3) from the dividend after 133, then repeat: 1333 / 443

Let's proceed to step 6:
443 can be fit into 1333 3 times, resulting in a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 493.0
Subtracting 1329 from 1333 leaves us with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 443

On to step 7:
If we divide 45 by 443, we get 0 and a remainder of 45.
Put 0 as the next digit of the answer. 
Result so far: 4930.0
If we subtract 0 from 45, we get 45.
Bring next digit (7) of the dividend behind the 45 and repeat the process: 457 / 443

Moving on to step 8:
443 goes into 457 1 times with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 49301.0
If we take 443 away from 457, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
The number 443 fits into 140 0 times, leaving a remainder of 140.
Record the quotient 0 as the next digit in the result. 
Result so far: 49301.0
If we subtract 0 from 140, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 10:
If we divide 1400 by 443, we get 3 and a remainder of 71.
Use 3 as the next digit of our solution. 
Result so far: 49301.03
Deduct 1329 from 1400 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 11:
710 divided by 443 is 1 with a remainder of 267.
Put 1 as the next digit of the answer. 
Result so far: 49301.031
The remainder is 267 after subtracting 443 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

On to step 12:
443 goes into 2670 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 49301.0316
If we subtract 2658 from 2670, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
120 divided by 443 is 0 with a remainder of 120.
The next digit of our result is 0. 
Result so far: 49301.0316
Deduct 0 from 120 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 14:
If we divide 1200 by 443, we get 2 and a remainder of 314.
Put 2 as the next digit of the answer. 
Result so far: 49301.031602
If we subtract 886 from 1200, we get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Advancing to step 15:
443 can be fit into 3140 7 times, resulting in a remainder of 39.
Record the quotient 7 as the next digit in the result. 
Result so far: 49301.0316027
The remainder is 39 after subtracting 3101 from 3140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 16:
443 goes into 390 0 times with a remainder of 390.
The next digit of our result is 0. 
Result so far: 49301.0316027
Subtract 0 from 390 to get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

After the division, we end up with 49301.0316027 and a remainder of 3.9e-07.