21508239 ÷ 233 
We want to divide 21508239 by 233.

On to step 1:
When dividing 2 by 233, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
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 / 233

Advancing to step 2:
When dividing 21 by 233, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 233

On to step 3:
233 can be fit into 215 0 times, resulting in a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 215, we get 215.
Include the next digit (0) from the dividend after 215, then repeat: 2150 / 233

Moving on to step 4:
When dividing 2150 by 233, we get 9 with a remainder of 53.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtracting 2097 from 2150 leaves us with 53.
Grab the next digit (8) from the dividend, add it to 53, then carry on: 538 / 233

On to step 5:
The number 233 fits into 538 2 times, leaving a remainder of 72.
The next digit of our result is 2. 
Result so far: 92.0
Deduct 466 from 538 and we're left with 72.
Fetch the next digit (2) from the dividend, attach it to 72 and continue: 722 / 233

Step 6:
The number 233 fits into 722 3 times, leaving a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 923.0
If we take 699 away from 722, we end up with 23.
Take the next digit (3) from the dividend and append it to 23, then repeat: 233 / 233

Moving on to step 7:
233 divided by 233 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 9231.0
Subtract 233 from 233 to get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 233

Step 8:
If we divide 9 by 233, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 92310.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 9:
233 can be fit into 90 0 times, resulting in a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 92310.0
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
233 goes into 900 3 times with a remainder of 201.
Use 3 as the next digit of our solution. 
Result so far: 92310.03
Subtracting 699 from 900 leaves us with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Advancing to step 11:
233 goes into 2010 8 times with a remainder of 146.
Put 8 as the next digit of the answer. 
Result so far: 92310.038
Subtract 1864 from 2010 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Going ahead to step 12:
When dividing 1460 by 233, we get 6 with a remainder of 62.
The next digit of our result is 6. 
Result so far: 92310.0386
Deduct 1398 from 1460 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 13:
When dividing 620 by 233, we get 2 with a remainder of 154.
Put 2 as the next digit of the answer. 
Result so far: 92310.03862
Deduct 466 from 620 and we're left with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 14:
1540 divided by 233 is 6 with a remainder of 142.
Record the quotient 6 as the next digit in the result. 
Result so far: 92310.038626
Subtract 1398 from 1540 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Moving on to step 15:
When dividing 1420 by 233, we get 6 with a remainder of 22.
The next digit of our result is 6. 
Result so far: 92310.0386266
Subtract 1398 from 1420 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The quotient of the division is 92310.0386266, and the remainder is 2.2e-07.