We look at the division of 957697 by 75 
The aim is to understand the frequency of 75 in 957697.

Going ahead to step 1:
If we divide 9 by 75, we get 0 and a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (5) from the dividend after 9, then repeat: 95 / 75

Moving on to step 2:
95 divided by 75 is 1 with a remainder of 20.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 75 from 95 and we're left with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 75

Moving on to step 3:
75 goes into 207 2 times with a remainder of 57.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 57 after subtracting 150 from 207.
Fetch the next digit (6) from the dividend, attach it to 57 and continue: 576 / 75

Advancing to step 4:
75 can be fit into 576 7 times, resulting in a remainder of 51.
The number 7 becomes the next digit in our result. 
Result so far: 127.0
If we subtract 525 from 576, we get 51.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 75

Let's proceed to step 5:
75 goes into 519 6 times with a remainder of 69.
Write down 6 as next digit of the result. 
Result so far: 1276.0
Deduct 450 from 519 and we're left with 69.
Bring next digit (7) of the dividend behind the 69 and repeat the process: 697 / 75

Advancing to step 6:
If we divide 697 by 75, we get 9 and a remainder of 22.
Put 9 as the next digit of the answer. 
Result so far: 12769.0
If we subtract 675 from 697, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 7:
75 can be fit into 220 2 times, resulting in a remainder of 70.
The next digit of our result is 2. 
Result so far: 12769.2
If we take 150 away from 220, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
75 can be fit into 700 9 times, resulting in a remainder of 25.
The next digit of our result is 9. 
Result so far: 12769.29
Subtracting 675 from 700 leaves us 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 9:
If we divide 250 by 75, we get 3 and a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 12769.293
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 10:
The number 75 fits into 250 3 times, leaving a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 12769.2933
Deduct 225 from 250 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.

After the division, we end up with 12769.2933 and a remainder of 0.00025.