We divide 21831368 by 999
We want to divide 21831368 by 999.

Step 1:
999 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 999

Let's proceed to step 2:
21 divided by 999 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 999

On to step 3:
999 can be fit into 218 0 times, resulting in a remainder of 218.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 218 leaves us with 218.
Include the next digit (3) from the dividend after 218, then repeat: 2183 / 999

Moving on to step 4:
2183 divided by 999 is 2 with a remainder of 185.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1998 from 2183 and we're left with 185.
Append the next digit (1) from the dividend to 185 and continue with: 1851 / 999

Let's proceed to step 5:
999 goes into 1851 1 times with a remainder of 852.
The next digit of our result is 1. 
Result so far: 21.0
Subtract 999 from 1851 to get 852.
Fetch the next digit (3) from the dividend, attach it to 852 and continue: 8523 / 999

Step 6:
The number 999 fits into 8523 8 times, leaving a remainder of 531.
The next digit of our result is 8. 
Result so far: 218.0
If we subtract 7992 from 8523, we get 531.
Grab the next digit (6) from the dividend, add it to 531, then carry on: 5316 / 999

Let's proceed to step 7:
999 can be fit into 5316 5 times, resulting in a remainder of 321.
The number 5 becomes the next digit in our result. 
Result so far: 2185.0
Subtract 4995 from 5316 to get 321.
Append the next digit (8) from the dividend to 321 and continue with: 3218 / 999

Let's proceed to step 8:
The number 999 fits into 3218 3 times, leaving a remainder of 221.
Write down 3 as next digit of the result. 
Result so far: 21853.0
Subtracting 2997 from 3218 leaves us with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Going ahead to step 9:
999 can be fit into 2210 2 times, resulting in a remainder of 212.
Use 2 as the next digit of our solution. 
Result so far: 21853.2
Deduct 1998 from 2210 and we're left with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 10:
When dividing 2120 by 999, we get 2 with a remainder of 122.
The next digit of our result is 2. 
Result so far: 21853.22
The remainder is 122 after subtracting 1998 from 2120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

After the division, we end up with 21853.22 and a remainder of 0.122.