We look at the division of 933555 by 25 
The aim is to understand the frequency of 25 in 933555.

Step 1:
25 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (3) of the dividend behind the 9 and repeat the process: 93 / 25

Let's proceed to step 2:
25 goes into 93 3 times with a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 75 from 93, we get 18.
Append the next digit (3) from the dividend to 18 and continue with: 183 / 25

On to step 3:
25 goes into 183 7 times with a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtract 175 from 183 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 25

Let's proceed to step 4:
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: 373.0
Subtract 75 from 85 to get 10.
Bring next digit (5) of the dividend behind the 10 and repeat the process: 105 / 25

Going ahead to step 5:
25 goes into 105 4 times with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 3734.0
Subtracting 100 from 105 leaves us with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 25

Let's proceed to step 6:
When dividing 55 by 25, we get 2 with a remainder of 5.
Record the quotient 2 as the next digit in the result. 
Result so far: 37342.0
Subtract 50 from 55 to 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.

Let's proceed to step 7:
50 divided by 25 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 37342.2
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 8:
The number 25 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 37342.2
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 9:
The number 25 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 37342.2
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.

The final result is 37342.2 with a remainder of 0.0.