We're dividing 758209 by 25 
The aim is to understand the frequency of 25 in 758209.

On to step 1:
If we divide 7 by 25, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 25

Let's proceed to step 2:
The number 25 fits into 75 3 times, leaving a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 0 after subtracting 75 from 75.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 25

Moving on to step 3:
25 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 30.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 25

Let's proceed to step 4:
If we divide 82 by 25, we get 3 and a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 303.0
The remainder is 7 after subtracting 75 from 82.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 25

Going ahead to step 5:
25 goes into 70 2 times with a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 3032.0
If we take 50 away from 70, we end up with 20.
Fetch the next digit (9) from the dividend, attach it to 20 and continue: 209 / 25

Advancing to step 6:
The number 25 fits into 209 8 times, leaving a remainder of 9.
Use 8 as the next digit of our solution. 
Result so far: 30328.0
If we subtract 200 from 209, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
25 can be fit into 90 3 times, resulting in a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 30328.3
The remainder is 15 after subtracting 75 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 8:
The number 25 fits into 150 6 times, leaving a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 30328.36
Subtract 150 from 150 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.

Going ahead to step 9:
25 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 30328.36
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.

Let's proceed to step 10:
When dividing 0 by 25, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 30328.36
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 30328.36 with a remainder of 0.0.