We look at the division of 21616009 by 750 
Let's see how many times 750 fits into 21616009.

Advancing to step 1:
If we divide 2 by 750, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
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 / 750

On to step 2:
If we divide 21 by 750, we get 0 and a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (6) from the dividend to 21 and continue with: 216 / 750

Going ahead to step 3:
750 goes into 216 0 times with a remainder of 216.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 216, we get 216.
Fetch the next digit (1) from the dividend, attach it to 216 and continue: 2161 / 750

On to step 4:
If we divide 2161 by 750, we get 2 and a remainder of 661.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 661 after subtracting 1500 from 2161.
Grab the next digit (6) from the dividend, add it to 661, then carry on: 6616 / 750

Advancing to step 5:
If we divide 6616 by 750, we get 8 and a remainder of 616.
Put 8 as the next digit of the answer. 
Result so far: 28.0
The remainder is 616 after subtracting 6000 from 6616.
Grab the next digit (0) from the dividend, add it to 616, then carry on: 6160 / 750

On to step 6:
6160 divided by 750 is 8 with a remainder of 160.
Record the quotient 8 as the next digit in the result. 
Result so far: 288.0
Subtracting 6000 from 6160 leaves us with 160.
Fetch the next digit (0) from the dividend, attach it to 160 and continue: 1600 / 750

Going ahead to step 7:
750 can be fit into 1600 2 times, resulting in a remainder of 100.
The number 2 becomes the next digit in our result. 
Result so far: 2882.0
Deduct 1500 from 1600 and we're left with 100.
Fetch the next digit (9) from the dividend, attach it to 100 and continue: 1009 / 750

Moving on to step 8:
750 goes into 1009 1 times with a remainder of 259.
Write down 1 as next digit of the result. 
Result so far: 28821.0
If we take 750 away from 1009, we end up with 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

On to step 9:
When dividing 2590 by 750, we get 3 with a remainder of 340.
The number 3 becomes the next digit in our result. 
Result so far: 28821.3
If we subtract 2250 from 2590, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 10:
The number 750 fits into 3400 4 times, leaving a remainder of 400.
The next digit of our result is 4. 
Result so far: 28821.34
If we take 3000 away from 3400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 11:
750 goes into 4000 5 times with a remainder of 250.
Use 5 as the next digit of our solution. 
Result so far: 28821.345
Subtracting 3750 from 4000 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Advancing to step 12:
750 can be fit into 2500 3 times, resulting in a remainder of 250.
The next digit of our result is 3. 
Result so far: 28821.3453
If we subtract 2250 from 2500, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 13:
750 goes into 2500 3 times with a remainder of 250.
Use 3 as the next digit of our solution. 
Result so far: 28821.34533
Subtracting 2250 from 2500 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

The quotient of the division is 28821.34533, and the remainder is 0.00025.