21568396 ÷ 560 
We want to figure out the number of times 21568396 can be divided by 560.

Step 1:
When dividing 2 by 560, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 560

Let's proceed to step 2:
560 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 560

Moving on to step 3:
If we divide 215 by 560, we get 0 and a remainder of 215.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 215 and we're left with 215.
Bring next digit (6) of the dividend behind the 215 and repeat the process: 2156 / 560

Advancing to step 4:
560 goes into 2156 3 times with a remainder of 476.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 1680 from 2156 to get 476.
Bring next digit (8) of the dividend behind the 476 and repeat the process: 4768 / 560

On to step 5:
The number 560 fits into 4768 8 times, leaving a remainder of 288.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
If we subtract 4480 from 4768, we get 288.
Bring next digit (3) of the dividend behind the 288 and repeat the process: 2883 / 560

Advancing to step 6:
When dividing 2883 by 560, we get 5 with a remainder of 83.
Put 5 as the next digit of the answer. 
Result so far: 385.0
If we subtract 2800 from 2883, we get 83.
Include the next digit (9) from the dividend after 83, then repeat: 839 / 560

Let's proceed to step 7:
The number 560 fits into 839 1 times, leaving a remainder of 279.
Use 1 as the next digit of our solution. 
Result so far: 3851.0
Deduct 560 from 839 and we're left with 279.
Grab the next digit (6) from the dividend, add it to 279, then carry on: 2796 / 560

Moving on to step 8:
When dividing 2796 by 560, we get 4 with a remainder of 556.
The next digit of our result is 4. 
Result so far: 38514.0
Subtracting 2240 from 2796 leaves us with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Advancing to step 9:
560 goes into 5560 9 times with a remainder of 520.
Put 9 as the next digit of the answer. 
Result so far: 38514.9
If we take 5040 away from 5560, we end up with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Step 10:
560 goes into 5200 9 times with a remainder of 160.
Put 9 as the next digit of the answer. 
Result so far: 38514.99
If we subtract 5040 from 5200, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

In conclusion, the division gives 38514.99 with a balance of 0.16.