We look at the division of 86968655 by 25 
The aim is to understand the frequency of 25 in 86968655.

Let's proceed to step 1:
The number 25 fits into 8 0 times, leaving 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.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 25

Moving on to step 2:
When dividing 86 by 25, we get 3 with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 11 after subtracting 75 from 86.
Grab the next digit (9) from the dividend, add it to 11, then carry on: 119 / 25

Going ahead to step 3:
119 divided by 25 is 4 with a remainder of 19.
Use 4 as the next digit of our solution. 
Result so far: 34.0
Subtracting 100 from 119 leaves us with 19.
Append the next digit (6) from the dividend to 19 and continue with: 196 / 25

Advancing to step 4:
When dividing 196 by 25, we get 7 with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 347.0
Deduct 175 from 196 and we're left with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 25

Going ahead to step 5:
If we divide 218 by 25, we get 8 and a remainder of 18.
Put 8 as the next digit of the answer. 
Result so far: 3478.0
Deduct 200 from 218 and we're left with 18.
Take the next digit (6) from the dividend and append it to 18, then repeat: 186 / 25

Let's proceed to step 6:
When dividing 186 by 25, we get 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 34787.0
Subtract 175 from 186 to get 11.
Append the next digit (5) from the dividend to 11 and continue with: 115 / 25

Going ahead to step 7:
25 goes into 115 4 times with a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 347874.0
If we subtract 100 from 115, we get 15.
Fetch the next digit (5) from the dividend, attach it to 15 and continue: 155 / 25

Going ahead to step 8:
If we divide 155 by 25, we get 6 and a remainder of 5.
The next digit of our result is 6. 
Result so far: 3478746.0
Subtracting 150 from 155 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
25 goes into 50 2 times with a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 3478746.2
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.

Going ahead to step 10:
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: 3478746.2
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.

Step 11:
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: 3478746.2
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.

After the division, we end up with 3478746.2 and a remainder of 0.0.