53243964 ÷ 525 
Our goal is to divide 53243964 by 525.

Advancing to step 1:
525 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 525

Going ahead to step 2:
When dividing 53 by 525, we get 0 with a remainder of 53.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Fetch the next digit (2) from the dividend, attach it to 53 and continue: 532 / 525

Going ahead to step 3:
525 goes into 532 1 times with a remainder of 7.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 525 from 532, we get 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 525

Let's proceed to step 4:
525 can be fit into 74 0 times, resulting in a remainder of 74.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 74 leaves us with 74.
Take the next digit (3) from the dividend and append it to 74, then repeat: 743 / 525

Let's proceed to step 5:
The number 525 fits into 743 1 times, leaving a remainder of 218.
Put 1 as the next digit of the answer. 
Result so far: 101.0
The remainder is 218 after subtracting 525 from 743.
Append the next digit (9) from the dividend to 218 and continue with: 2189 / 525

Going ahead to step 6:
When dividing 2189 by 525, we get 4 with a remainder of 89.
The number 4 becomes the next digit in our result. 
Result so far: 1014.0
If we subtract 2100 from 2189, we get 89.
Fetch the next digit (6) from the dividend, attach it to 89 and continue: 896 / 525

Going ahead to step 7:
525 can be fit into 896 1 times, resulting in a remainder of 371.
Write down 1 as next digit of the result. 
Result so far: 10141.0
Deduct 525 from 896 and we're left with 371.
Take the next digit (4) from the dividend and append it to 371, then repeat: 3714 / 525

Let's proceed to step 8:
525 goes into 3714 7 times with a remainder of 39.
The number 7 becomes the next digit in our result. 
Result so far: 101417.0
Subtracting 3675 from 3714 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 9:
390 divided by 525 is 0 with a remainder of 390.
Use 0 as the next digit of our solution. 
Result so far: 101417.0
If we subtract 0 from 390, we get 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Step 10:
525 can be fit into 3900 7 times, resulting in a remainder of 225.
Use 7 as the next digit of our solution. 
Result so far: 101417.07
Deduct 3675 from 3900 and we're left with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 11:
If we divide 2250 by 525, we get 4 and a remainder of 150.
The next digit of our result is 4. 
Result so far: 101417.074
The remainder is 150 after subtracting 2100 from 2250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 12:
525 can be fit into 1500 2 times, resulting in a remainder of 450.
The number 2 becomes the next digit in our result. 
Result so far: 101417.0742
Subtract 1050 from 1500 to get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Going ahead to step 13:
The number 525 fits into 4500 8 times, leaving a remainder of 300.
The number 8 becomes the next digit in our result. 
Result so far: 101417.07428
If we take 4200 away from 4500, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 14:
525 goes into 3000 5 times with a remainder of 375.
Put 5 as the next digit of the answer. 
Result so far: 101417.074285
If we subtract 2625 from 3000, we get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 15:
3750 divided by 525 is 7 with a remainder of 75.
The number 7 becomes the next digit in our result. 
Result so far: 101417.0742857
If we subtract 3675 from 3750, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 16:
If we divide 750 by 525, we get 1 and a remainder of 225.
Write down 1 as next digit of the result. 
Result so far: 101417.07428571
If we take 525 away from 750, we end up with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

The final outcome is 101417.07428571, with a leftover of 2.25e-07.