We look at the division of 951669 by 25 
The aim is to understand the frequency of 25 in 951669.

Advancing to step 1:
If we divide 9 by 25, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (5) from the dividend, attach it to 9 and continue: 95 / 25

Going ahead to step 2:
25 goes into 95 3 times with a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 75 from 95 leaves us with 20.
Include the next digit (1) from the dividend after 20, then repeat: 201 / 25

Let's proceed to step 3:
When dividing 201 by 25, we get 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 38.0
Subtracting 200 from 201 leaves us with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 25

Moving on to step 4:
25 goes into 16 0 times with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 380.0
The remainder is 16 after subtracting 0 from 16.
Take the next digit (6) from the dividend and append it to 16, then repeat: 166 / 25

Step 5:
166 divided by 25 is 6 with a remainder of 16.
The next digit of our result is 6. 
Result so far: 3806.0
Subtracting 150 from 166 leaves us with 16.
Bring next digit (9) of the dividend behind the 16 and repeat the process: 169 / 25

Going ahead to step 6:
25 goes into 169 6 times with a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 38066.0
Subtract 150 from 169 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
The number 25 fits into 190 7 times, leaving a remainder of 15.
The next digit of our result is 7. 
Result so far: 38066.7
If we take 175 away from 190, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

On to step 8:
150 divided by 25 is 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 38066.76
Subtract 150 from 150 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.

On to step 9:
0 divided by 25 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 38066.76
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.

Advancing to step 10:
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: 38066.76
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.

After the division, we end up with 38066.76 and a remainder of 0.0.