779725 ÷ 75 
The aim is to understand the frequency of 75 in 779725.

Step 1:
75 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 75

Advancing to step 2:
When dividing 77 by 75, we get 1 with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 75 away from 77, we end up with 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 75

On to step 3:
75 can be fit into 29 0 times, resulting in a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
If we take 0 away from 29, we end up with 29.
Bring next digit (7) of the dividend behind the 29 and repeat the process: 297 / 75

On to step 4:
When dividing 297 by 75, we get 3 with a remainder of 72.
Use 3 as the next digit of our solution. 
Result so far: 103.0
If we subtract 225 from 297, we get 72.
Take the next digit (2) from the dividend and append it to 72, then repeat: 722 / 75

Step 5:
When dividing 722 by 75, we get 9 with a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 1039.0
If we take 675 away from 722, we end up with 47.
Bring next digit (5) of the dividend behind the 47 and repeat the process: 475 / 75

Advancing to step 6:
If we divide 475 by 75, we get 6 and a remainder of 25.
Put 6 as the next digit of the answer. 
Result so far: 10396.0
Deduct 450 from 475 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
250 divided by 75 is 3 with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 10396.3
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 8:
250 divided by 75 is 3 with a remainder of 25.
The next digit of our result is 3. 
Result so far: 10396.33
If we take 225 away from 250, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final result is 10396.33 with a remainder of 0.025.