We're dividing 253995 by 525 
The aim is to understand the frequency of 525 in 253995.

Going ahead to step 1:
525 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 525

Going ahead to step 2:
If we divide 25 by 525, we get 0 and a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 525

Going ahead to step 3:
253 divided by 525 is 0 with a remainder of 253.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 253 after subtracting 0 from 253.
Take the next digit (9) from the dividend and append it to 253, then repeat: 2539 / 525

Going ahead to step 4:
2539 divided by 525 is 4 with a remainder of 439.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 2100 from 2539 to get 439.
Append the next digit (9) from the dividend to 439 and continue with: 4399 / 525

Step 5:
The number 525 fits into 4399 8 times, leaving a remainder of 199.
Put 8 as the next digit of the answer. 
Result so far: 48.0
Subtracting 4200 from 4399 leaves us with 199.
Take the next digit (5) from the dividend and append it to 199, then repeat: 1995 / 525

Going ahead to step 6:
525 goes into 1995 3 times with a remainder of 420.
The number 3 becomes the next digit in our result. 
Result so far: 483.0
If we take 1575 away from 1995, we end up with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 7:
525 can be fit into 4200 8 times, resulting in a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 483.8
Deduct 4200 from 4200 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
525 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 483.8
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
525 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 483.8
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 483.8 with a remaining 0.0.