We're dividing 21609477 by 569 
We want to figure out the number of times 21609477 can be divided by 569.

On to step 1:
569 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 569

Moving on to step 2:
The number 569 fits into 21 0 times, leaving a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Grab the next digit (6) from the dividend, add it to 21, then carry on: 216 / 569

Going ahead to step 3:
569 goes into 216 0 times with a remainder of 216.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 216, we get 216.
Append the next digit (0) from the dividend to 216 and continue with: 2160 / 569

Advancing to step 4:
569 can be fit into 2160 3 times, resulting in a remainder of 453.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 1707 from 2160, we get 453.
Bring next digit (9) of the dividend behind the 453 and repeat the process: 4539 / 569

Moving on to step 5:
The number 569 fits into 4539 7 times, leaving a remainder of 556.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtracting 3983 from 4539 leaves us with 556.
Grab the next digit (4) from the dividend, add it to 556, then carry on: 5564 / 569

Let's proceed to step 6:
If we divide 5564 by 569, we get 9 and a remainder of 443.
Use 9 as the next digit of our solution. 
Result so far: 379.0
Subtracting 5121 from 5564 leaves us with 443.
Bring next digit (7) of the dividend behind the 443 and repeat the process: 4437 / 569

Moving on to step 7:
569 goes into 4437 7 times with a remainder of 454.
The number 7 becomes the next digit in our result. 
Result so far: 3797.0
Subtract 3983 from 4437 to get 454.
Grab the next digit (7) from the dividend, add it to 454, then carry on: 4547 / 569

Going ahead to step 8:
4547 divided by 569 is 7 with a remainder of 564.
Write down 7 as next digit of the result. 
Result so far: 37977.0
Deduct 3983 from 4547 and we're left with 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

On to step 9:
569 goes into 5640 9 times with a remainder of 519.
The next digit of our result is 9. 
Result so far: 37977.9
Subtract 5121 from 5640 to get 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Let's proceed to step 10:
5190 divided by 569 is 9 with a remainder of 69.
Use 9 as the next digit of our solution. 
Result so far: 37977.99
Subtracting 5121 from 5190 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Our division results in 37977.99 with a remaining 0.069.