Let's divide 21758882 by 728
We want to figure out the number of times 21758882 can be divided by 728.

Moving on to step 1:
If we divide 2 by 728, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 728

Moving on to step 2:
The number 728 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 728

Going ahead to step 3:
If we divide 217 by 728, we get 0 and a remainder of 217.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 217, we get 217.
Take the next digit (5) from the dividend and append it to 217, then repeat: 2175 / 728

On to step 4:
The number 728 fits into 2175 2 times, leaving a remainder of 719.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1456 away from 2175, we end up with 719.
Bring next digit (8) of the dividend behind the 719 and repeat the process: 7198 / 728

Let's proceed to step 5:
The number 728 fits into 7198 9 times, leaving a remainder of 646.
Put 9 as the next digit of the answer. 
Result so far: 29.0
Subtract 6552 from 7198 to get 646.
Grab the next digit (8) from the dividend, add it to 646, then carry on: 6468 / 728

Step 6:
If we divide 6468 by 728, we get 8 and a remainder of 644.
Use 8 as the next digit of our solution. 
Result so far: 298.0
Deduct 5824 from 6468 and we're left with 644.
Bring next digit (8) of the dividend behind the 644 and repeat the process: 6448 / 728

Advancing to step 7:
728 goes into 6448 8 times with a remainder of 624.
Use 8 as the next digit of our solution. 
Result so far: 2988.0
Subtract 5824 from 6448 to get 624.
Append the next digit (2) from the dividend to 624 and continue with: 6242 / 728

Let's proceed to step 8:
The number 728 fits into 6242 8 times, leaving a remainder of 418.
Write down 8 as next digit of the result. 
Result so far: 29888.0
The remainder is 418 after subtracting 5824 from 6242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Going ahead to step 9:
The number 728 fits into 4180 5 times, leaving a remainder of 540.
The number 5 becomes the next digit in our result. 
Result so far: 29888.5
The remainder is 540 after subtracting 3640 from 4180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Let's proceed to step 10:
If we divide 5400 by 728, we get 7 and a remainder of 304.
Use 7 as the next digit of our solution. 
Result so far: 29888.57
Deduct 5096 from 5400 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

On to step 11:
728 goes into 3040 4 times with a remainder of 128.
Put 4 as the next digit of the answer. 
Result so far: 29888.574
If we subtract 2912 from 3040, we get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Advancing to step 12:
The number 728 fits into 1280 1 times, leaving a remainder of 552.
Record the quotient 1 as the next digit in the result. 
Result so far: 29888.5741
If we take 728 away from 1280, we end up with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Going ahead to step 13:
728 goes into 5520 7 times with a remainder of 424.
Put 7 as the next digit of the answer. 
Result so far: 29888.57417
Subtract 5096 from 5520 to get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Moving on to step 14:
728 goes into 4240 5 times with a remainder of 600.
Write down 5 as next digit of the result. 
Result so far: 29888.574175
Subtracting 3640 from 4240 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 15:
728 goes into 6000 8 times with a remainder of 176.
The number 8 becomes the next digit in our result. 
Result so far: 29888.5741758
Deduct 5824 from 6000 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 16:
728 goes into 1760 2 times with a remainder of 304.
Put 2 as the next digit of the answer. 
Result so far: 29888.57417582
If we take 1456 away from 1760, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

After the division, we end up with 29888.57417582 and a remainder of 3.04e-07.