We look at the division of 679923 by 25 
The aim is to understand the frequency of 25 in 679923.

On to step 1:
25 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (7) from the dividend after 6, then repeat: 67 / 25

Step 2:
If we divide 67 by 25, we get 2 and a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 17 after subtracting 50 from 67.
Fetch the next digit (9) from the dividend, attach it to 17 and continue: 179 / 25

Moving on to step 3:
179 divided by 25 is 7 with a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 27.0
Subtracting 175 from 179 leaves us with 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 25

Advancing to step 4:
When dividing 49 by 25, we get 1 with a remainder of 24.
The next digit of our result is 1. 
Result so far: 271.0
If we subtract 25 from 49, we get 24.
Fetch the next digit (2) from the dividend, attach it to 24 and continue: 242 / 25

Advancing to step 5:
25 goes into 242 9 times with a remainder of 17.
Put 9 as the next digit of the answer. 
Result so far: 2719.0
Deduct 225 from 242 and we're left with 17.
Bring next digit (3) of the dividend behind the 17 and repeat the process: 173 / 25

Moving on to step 6:
173 divided by 25 is 6 with a remainder of 23.
The next digit of our result is 6. 
Result so far: 27196.0
Subtract 150 from 173 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 7:
230 divided by 25 is 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 27196.9
Subtract 225 from 230 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 8:
The number 25 fits into 50 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 27196.92
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.

Moving on to step 9:
25 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 27196.92
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.

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: 27196.92
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.

The final result is 27196.92 with a remainder of 0.0.