21556882 ÷ 720 
Our goal is to divide 21556882 by 720.

Let's proceed to step 1:
When dividing 2 by 720, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 720

Moving on to step 2:
When dividing 21 by 720, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Grab the next digit (5) from the dividend, add it to 21, then carry on: 215 / 720

Let's proceed to step 3:
215 divided by 720 is 0 with a remainder of 215.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 215, we end up with 215.
Grab the next digit (5) from the dividend, add it to 215, then carry on: 2155 / 720

On to step 4:
When dividing 2155 by 720, we get 2 with a remainder of 715.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1440 away from 2155, we end up with 715.
Fetch the next digit (6) from the dividend, attach it to 715 and continue: 7156 / 720

Going ahead to step 5:
720 goes into 7156 9 times with a remainder of 676.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
The remainder is 676 after subtracting 6480 from 7156.
Include the next digit (8) from the dividend after 676, then repeat: 6768 / 720

Advancing to step 6:
The number 720 fits into 6768 9 times, leaving a remainder of 288.
Put 9 as the next digit of the answer. 
Result so far: 299.0
The remainder is 288 after subtracting 6480 from 6768.
Fetch the next digit (8) from the dividend, attach it to 288 and continue: 2888 / 720

Going ahead to step 7:
2888 divided by 720 is 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 2994.0
Subtracting 2880 from 2888 leaves us with 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 720

Advancing to step 8:
When dividing 82 by 720, we get 0 with a remainder of 82.
The next digit of our result is 0. 
Result so far: 29940.0
Subtracting 0 from 82 leaves us with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 9:
If we divide 820 by 720, we get 1 and a remainder of 100.
The next digit of our result is 1. 
Result so far: 29940.1
The remainder is 100 after subtracting 720 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 10:
When dividing 1000 by 720, we get 1 with a remainder of 280.
Record the quotient 1 as the next digit in the result. 
Result so far: 29940.11
Deduct 720 from 1000 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

The quotient of the division is 29940.11, and the remainder is 0.28.