We look at the division of 52397834 by 648 
We want to divide 52397834 by 648.

On to step 1:
When dividing 5 by 648, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 648

Going ahead to step 2:
648 goes into 52 0 times with a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 52 after subtracting 0 from 52.
Append the next digit (3) from the dividend to 52 and continue with: 523 / 648

Moving on to step 3:
648 goes into 523 0 times with a remainder of 523.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 523 after subtracting 0 from 523.
Include the next digit (9) from the dividend after 523, then repeat: 5239 / 648

Advancing to step 4:
When dividing 5239 by 648, we get 8 with a remainder of 55.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we take 5184 away from 5239, we end up with 55.
Include the next digit (7) from the dividend after 55, then repeat: 557 / 648

On to step 5:
557 divided by 648 is 0 with a remainder of 557.
Write down 0 as next digit of the result. 
Result so far: 80.0
Deduct 0 from 557 and we're left with 557.
Fetch the next digit (8) from the dividend, attach it to 557 and continue: 5578 / 648

Going ahead to step 6:
648 can be fit into 5578 8 times, resulting in a remainder of 394.
The number 8 becomes the next digit in our result. 
Result so far: 808.0
If we take 5184 away from 5578, we end up with 394.
Append the next digit (3) from the dividend to 394 and continue with: 3943 / 648

Moving on to step 7:
The number 648 fits into 3943 6 times, leaving a remainder of 55.
Use 6 as the next digit of our solution. 
Result so far: 8086.0
If we take 3888 away from 3943, we end up with 55.
Fetch the next digit (4) from the dividend, attach it to 55 and continue: 554 / 648

Going ahead to step 8:
554 divided by 648 is 0 with a remainder of 554.
Write down 0 as next digit of the result. 
Result so far: 80860.0
Subtracting 0 from 554 leaves us with 554.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5540, and continue the process.

Going ahead to step 9:
The number 648 fits into 5540 8 times, leaving a remainder of 356.
The number 8 becomes the next digit in our result. 
Result so far: 80860.8
Subtracting 5184 from 5540 leaves us with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Advancing to step 10:
3560 divided by 648 is 5 with a remainder of 320.
Write down 5 as next digit of the result. 
Result so far: 80860.85
Subtracting 3240 from 3560 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.

Going ahead to step 11:
When dividing 3200 by 648, we get 4 with a remainder of 608.
Write down 4 as next digit of the result. 
Result so far: 80860.854
Subtract 2592 from 3200 to get 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Moving on to step 12:
The number 648 fits into 6080 9 times, leaving a remainder of 248.
The next digit of our result is 9. 
Result so far: 80860.8549
The remainder is 248 after subtracting 5832 from 6080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Moving on to step 13:
648 goes into 2480 3 times with a remainder of 536.
The number 3 becomes the next digit in our result. 
Result so far: 80860.85493
Subtracting 1944 from 2480 leaves us with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Let's proceed to step 14:
648 can be fit into 5360 8 times, resulting in a remainder of 176.
The number 8 becomes the next digit in our result. 
Result so far: 80860.854938
Subtract 5184 from 5360 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 15:
648 goes into 1760 2 times with a remainder of 464.
Write down 2 as next digit of the result. 
Result so far: 80860.8549382
If we subtract 1296 from 1760, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Let's proceed to step 16:
648 goes into 4640 7 times with a remainder of 104.
The number 7 becomes the next digit in our result. 
Result so far: 80860.85493827
If we subtract 4536 from 4640, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

The quotient of the division is 80860.85493827, and the remainder is 1.04e-07.