53032310 ÷ 648 
We want to divide 53032310 by 648.

Moving on to step 1:
5 divided by 648 is 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.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 648

Advancing to step 2:
When dividing 53 by 648, we get 0 with a remainder of 53.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Take the next digit (0) from the dividend and append it to 53, then repeat: 530 / 648

Step 3:
When dividing 530 by 648, we get 0 with a remainder of 530.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 530 after subtracting 0 from 530.
Bring next digit (3) of the dividend behind the 530 and repeat the process: 5303 / 648

Moving on to step 4:
648 goes into 5303 8 times with a remainder of 119.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 5184 from 5303 leaves us with 119.
Include the next digit (2) from the dividend after 119, then repeat: 1192 / 648

Advancing to step 5:
The number 648 fits into 1192 1 times, leaving a remainder of 544.
The next digit of our result is 1. 
Result so far: 81.0
If we take 648 away from 1192, we end up with 544.
Bring next digit (3) of the dividend behind the 544 and repeat the process: 5443 / 648

On to step 6:
When dividing 5443 by 648, we get 8 with a remainder of 259.
The number 8 becomes the next digit in our result. 
Result so far: 818.0
If we take 5184 away from 5443, we end up with 259.
Include the next digit (1) from the dividend after 259, then repeat: 2591 / 648

Step 7:
648 goes into 2591 3 times with a remainder of 647.
Write down 3 as next digit of the result. 
Result so far: 8183.0
If we subtract 1944 from 2591, we get 647.
Take the next digit (0) from the dividend and append it to 647, then repeat: 6470 / 648

Moving on to step 8:
648 goes into 6470 9 times with a remainder of 638.
Put 9 as the next digit of the answer. 
Result so far: 81839.0
Deduct 5832 from 6470 and we're left with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

On to step 9:
When dividing 6380 by 648, we get 9 with a remainder of 548.
Use 9 as the next digit of our solution. 
Result so far: 81839.9
If we subtract 5832 from 6380, we get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Moving on to step 10:
648 goes into 5480 8 times with a remainder of 296.
The number 8 becomes the next digit in our result. 
Result so far: 81839.98
If we take 5184 away from 5480, we end up with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 11:
648 goes into 2960 4 times with a remainder of 368.
Write down 4 as next digit of the result. 
Result so far: 81839.984
Subtract 2592 from 2960 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Step 12:
3680 divided by 648 is 5 with a remainder of 440.
Write down 5 as next digit of the result. 
Result so far: 81839.9845
Deduct 3240 from 3680 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 13:
The number 648 fits into 4400 6 times, leaving a remainder of 512.
The next digit of our result is 6. 
Result so far: 81839.98456
Deduct 3888 from 4400 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Moving on to step 14:
The number 648 fits into 5120 7 times, leaving a remainder of 584.
Use 7 as the next digit of our solution. 
Result so far: 81839.984567
Subtract 4536 from 5120 to get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Advancing to step 15:
648 goes into 5840 9 times with a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 81839.9845679
Deduct 5832 from 5840 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 16:
648 goes into 80 0 times with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 81839.9845679
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

After the division, we end up with 81839.9845679 and a remainder of 8e-08.