52696335 ÷ 648 
Our goal is to divide 52696335 by 648.

Let's proceed to step 1:
5 divided by 648 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 648

Going ahead to step 2:
52 divided by 648 is 0 with a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Grab the next digit (6) from the dividend, add it to 52, then carry on: 526 / 648

Step 3:
526 divided by 648 is 0 with a remainder of 526.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 526 leaves us with 526.
Append the next digit (9) from the dividend to 526 and continue with: 5269 / 648

Step 4:
5269 divided by 648 is 8 with a remainder of 85.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 5184 away from 5269, we end up with 85.
Bring next digit (6) of the dividend behind the 85 and repeat the process: 856 / 648

On to step 5:
648 goes into 856 1 times with a remainder of 208.
Put 1 as the next digit of the answer. 
Result so far: 81.0
Deduct 648 from 856 and we're left with 208.
Take the next digit (3) from the dividend and append it to 208, then repeat: 2083 / 648

Step 6:
648 can be fit into 2083 3 times, resulting in a remainder of 139.
Record the quotient 3 as the next digit in the result. 
Result so far: 813.0
If we subtract 1944 from 2083, we get 139.
Fetch the next digit (3) from the dividend, attach it to 139 and continue: 1393 / 648

On to step 7:
The number 648 fits into 1393 2 times, leaving a remainder of 97.
Put 2 as the next digit of the answer. 
Result so far: 8132.0
Subtracting 1296 from 1393 leaves us with 97.
Fetch the next digit (5) from the dividend, attach it to 97 and continue: 975 / 648

Moving on to step 8:
The number 648 fits into 975 1 times, leaving a remainder of 327.
Put 1 as the next digit of the answer. 
Result so far: 81321.0
If we take 648 away from 975, we end up with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Going ahead to step 9:
The number 648 fits into 3270 5 times, leaving a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 81321.5
Subtract 3240 from 3270 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 10:
The number 648 fits into 300 0 times, leaving a remainder of 300.
Write down 0 as next digit of the result. 
Result so far: 81321.5
If we subtract 0 from 300, we get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 11:
648 can be fit into 3000 4 times, resulting in a remainder of 408.
Use 4 as the next digit of our solution. 
Result so far: 81321.504
Deduct 2592 from 3000 and we're left with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Moving on to step 12:
The number 648 fits into 4080 6 times, leaving a remainder of 192.
The number 6 becomes the next digit in our result. 
Result so far: 81321.5046
If we take 3888 away from 4080, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Going ahead to step 13:
If we divide 1920 by 648, we get 2 and a remainder of 624.
The number 2 becomes the next digit in our result. 
Result so far: 81321.50462
Subtract 1296 from 1920 to get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

On to step 14:
If we divide 6240 by 648, we get 9 and a remainder of 408.
Put 9 as the next digit of the answer. 
Result so far: 81321.504629
If we take 5832 away from 6240, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Let's proceed to step 15:
If we divide 4080 by 648, we get 6 and a remainder of 192.
Use 6 as the next digit of our solution. 
Result so far: 81321.5046296
If we take 3888 away from 4080, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 16:
1920 divided by 648 is 2 with a remainder of 624.
The next digit of our result is 2. 
Result so far: 81321.50462962
The remainder is 624 after subtracting 1296 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

The final outcome is 81321.50462962, with a leftover of 6.24e-07.