We're dividing 51215888 by 564 
We're looking to find how many times 564 goes into 51215888.

Advancing to step 1:
If we divide 5 by 564, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 564

Step 2:
If we divide 51 by 564, we get 0 and a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Take the next digit (2) from the dividend and append it to 51, then repeat: 512 / 564

On to step 3:
If we divide 512 by 564, we get 0 and a remainder of 512.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 512 and we're left with 512.
Take the next digit (1) from the dividend and append it to 512, then repeat: 5121 / 564

Moving on to step 4:
564 can be fit into 5121 9 times, resulting in a remainder of 45.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
If we take 5076 away from 5121, we end up with 45.
Append the next digit (5) from the dividend to 45 and continue with: 455 / 564

Moving on to step 5:
455 divided by 564 is 0 with a remainder of 455.
Put 0 as the next digit of the answer. 
Result so far: 90.0
Deduct 0 from 455 and we're left with 455.
Grab the next digit (8) from the dividend, add it to 455, then carry on: 4558 / 564

Moving on to step 6:
4558 divided by 564 is 8 with a remainder of 46.
The number 8 becomes the next digit in our result. 
Result so far: 908.0
Subtracting 4512 from 4558 leaves us with 46.
Grab the next digit (8) from the dividend, add it to 46, then carry on: 468 / 564

Step 7:
If we divide 468 by 564, we get 0 and a remainder of 468.
Write down 0 as next digit of the result. 
Result so far: 9080.0
The remainder is 468 after subtracting 0 from 468.
Fetch the next digit (8) from the dividend, attach it to 468 and continue: 4688 / 564

On to step 8:
The number 564 fits into 4688 8 times, leaving a remainder of 176.
Record the quotient 8 as the next digit in the result. 
Result so far: 90808.0
Subtract 4512 from 4688 to get 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 9:
564 goes into 1760 3 times with a remainder of 68.
Use 3 as the next digit of our solution. 
Result so far: 90808.3
Subtract 1692 from 1760 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 10:
When dividing 680 by 564, we get 1 with a remainder of 116.
Write down 1 as next digit of the result. 
Result so far: 90808.31
If we subtract 564 from 680, we get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 11:
If we divide 1160 by 564, we get 2 and a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 90808.312
The remainder is 32 after subtracting 1128 from 1160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 12:
564 goes into 320 0 times with a remainder of 320.
Use 0 as the next digit of our solution. 
Result so far: 90808.312
Subtracting 0 from 320 leaves us with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 13:
564 goes into 3200 5 times with a remainder of 380.
Record the quotient 5 as the next digit in the result. 
Result so far: 90808.31205
Subtracting 2820 from 3200 leaves us with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

On to step 14:
If we divide 3800 by 564, we get 6 and a remainder of 416.
Record the quotient 6 as the next digit in the result. 
Result so far: 90808.312056
If we take 3384 away from 3800, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Going ahead to step 15:
When dividing 4160 by 564, we get 7 with a remainder of 212.
Use 7 as the next digit of our solution. 
Result so far: 90808.3120567
If we take 3948 away from 4160, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Moving on to step 16:
If we divide 2120 by 564, we get 3 and a remainder of 428.
Write down 3 as next digit of the result. 
Result so far: 90808.31205673
Subtracting 1692 from 2120 leaves us with 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Our division results in 90808.31205673 with a remaining 4.28e-07.