Let's divide 983953 by 25
The aim is to understand the frequency of 25 in 983953.

Going ahead to step 1:
If we divide 9 by 25, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 25

Moving on to step 2:
When dividing 98 by 25, we get 3 with a remainder of 23.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 23 after subtracting 75 from 98.
Take the next digit (3) from the dividend and append it to 23, then repeat: 233 / 25

On to step 3:
The number 25 fits into 233 9 times, leaving a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
If we take 225 away from 233, we end up with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 25

Going ahead to step 4:
If we divide 89 by 25, we get 3 and a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 393.0
The remainder is 14 after subtracting 75 from 89.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 25

On to step 5:
The number 25 fits into 145 5 times, leaving a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 3935.0
If we take 125 away from 145, we end up with 20.
Append the next digit (3) from the dividend to 20 and continue with: 203 / 25

Moving on to step 6:
203 divided by 25 is 8 with a remainder of 3.
Put 8 as the next digit of the answer. 
Result so far: 39358.0
If we take 200 away from 203, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
25 goes into 30 1 times with a remainder of 5.
The next digit of our result is 1. 
Result so far: 39358.1
If we subtract 25 from 30, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
25 goes into 50 2 times with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 39358.12
If we take 50 away from 50, 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.

Step 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39358.12
Deduct 0 from 0 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.

Going ahead to step 10:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 39358.12
Deduct 0 from 0 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.

Our division results in 39358.12 with a remaining 0.0.