We look at the division of 855506 by 25 
The aim is to understand the frequency of 25 in 855506.

Step 1:
When dividing 8 by 25, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 25

Advancing to step 2:
If we divide 85 by 25, we get 3 and a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 75 away from 85, we end up with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 25

On to step 3:
25 can be fit into 105 4 times, resulting in a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we take 100 away from 105, we end up with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 25

Going ahead to step 4:
55 divided by 25 is 2 with a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 342.0
If we take 50 away from 55, we end up with 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 25

Step 5:
The number 25 fits into 50 2 times, leaving a remainder of 0.
The next digit of our result is 2. 
Result so far: 3422.0
Subtracting 50 from 50 leaves us with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 25

Step 6:
6 divided by 25 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 34220.0
Deduct 0 from 6 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
When dividing 60 by 25, we get 2 with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 34220.2
Subtract 50 from 60 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
100 divided by 25 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 34220.24
If we subtract 100 from 100, 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.

Let's proceed to step 9:
When dividing 0 by 25, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 34220.24
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.

Advancing to step 10:
If we divide 0 by 25, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 34220.24
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.

In conclusion, the division gives 34220.24 with a balance of 0.0.