Let's divide 908031 by 25
The aim is to understand the frequency of 25 in 908031.

Going ahead to step 1:
9 divided by 25 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 25

On to step 2:
The number 25 fits into 90 3 times, leaving a remainder of 15.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 75 from 90 to get 15.
Include the next digit (8) from the dividend after 15, then repeat: 158 / 25

Going ahead to step 3:
25 can be fit into 158 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 36.0
If we take 150 away from 158, we end up with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 25

Advancing to step 4:
When dividing 80 by 25, we get 3 with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 363.0
Subtracting 75 from 80 leaves us with 5.
Include the next digit (3) from the dividend after 5, then repeat: 53 / 25

Going ahead to step 5:
If we divide 53 by 25, we get 2 and a remainder of 3.
The number 2 becomes the next digit in our result. 
Result so far: 3632.0
Subtract 50 from 53 to get 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 25

Let's proceed to step 6:
If we divide 31 by 25, we get 1 and a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 36321.0
Subtract 25 from 31 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
60 divided by 25 is 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 36321.2
The remainder is 10 after subtracting 50 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
The number 25 fits into 100 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 36321.24
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
0 divided by 25 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 36321.24
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.

On 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: 36321.24
Subtracting 0 from 0 leaves us 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.

After the division, we end up with 36321.24 and a remainder of 0.0.