964658 divided by 25 
The aim is to understand the frequency of 25 in 964658.

Advancing to step 1:
The number 25 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (6) from the dividend and append it to 9, then repeat: 96 / 25

Advancing to step 2:
The number 25 fits into 96 3 times, leaving a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 75 from 96 leaves us with 21.
Include the next digit (4) from the dividend after 21, then repeat: 214 / 25

Moving on to step 3:
214 divided by 25 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
Subtract 200 from 214 to get 14.
Take the next digit (6) from the dividend and append it to 14, then repeat: 146 / 25

Advancing to step 4:
The number 25 fits into 146 5 times, leaving a remainder of 21.
The number 5 becomes the next digit in our result. 
Result so far: 385.0
Subtract 125 from 146 to get 21.
Take the next digit (5) from the dividend and append it to 21, then repeat: 215 / 25

Step 5:
25 goes into 215 8 times with a remainder of 15.
The number 8 becomes the next digit in our result. 
Result so far: 3858.0
If we subtract 200 from 215, we get 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 25

Let's proceed to step 6:
25 goes into 158 6 times with a remainder of 8.
The next digit of our result is 6. 
Result so far: 38586.0
Subtracting 150 from 158 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
The number 25 fits into 80 3 times, leaving a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 38586.3
Subtract 75 from 80 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.

Advancing to step 8:
If we divide 50 by 25, we get 2 and a remainder of 0.
The next digit of our result is 2. 
Result so far: 38586.32
Subtracting 50 from 50 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.

Let's proceed to step 9:
If we divide 0 by 25, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 38586.32
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.

On to step 10:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 38586.32
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.

After the division, we end up with 38586.32 and a remainder of 0.0.