We look at the division of 321252 by 25 
The aim is to understand the frequency of 25 in 321252.

Going ahead to step 1:
When dividing 3 by 25, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (2) from the dividend after 3, then repeat: 32 / 25

Going ahead to step 2:
When dividing 32 by 25, we get 1 with a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 25 from 32 and we're left with 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 25

Moving on to step 3:
71 divided by 25 is 2 with a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 50 from 71 leaves us with 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 25

Let's proceed to step 4:
The number 25 fits into 212 8 times, leaving a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 128.0
Subtracting 200 from 212 leaves us with 12.
Append the next digit (5) from the dividend to 12 and continue with: 125 / 25

On to step 5:
The number 25 fits into 125 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1285.0
Deduct 125 from 125 and we're left with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 25

On to step 6:
If we divide 2 by 25, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 12850.0
The remainder is 2 after subtracting 0 from 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
20 divided by 25 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 12850.0
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
25 can be fit into 200 8 times, resulting in a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 12850.08
Deduct 200 from 200 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.

Moving on to step 9:
25 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: 12850.08
The remainder is 0 after subtracting 0 from 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 10:
25 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12850.08
Subtract 0 from 0 to 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.

The final outcome is 12850.08, with a leftover of 0.0.