We're dividing 577126 by 75 
The aim is to understand the frequency of 75 in 577126.

Going ahead to step 1:
75 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 75

Moving on to step 2:
75 can be fit into 57 0 times, resulting in a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Fetch the next digit (7) from the dividend, attach it to 57 and continue: 577 / 75

Step 3:
If we divide 577 by 75, we get 7 and a remainder of 52.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 525 from 577 leaves us with 52.
Take the next digit (1) from the dividend and append it to 52, then repeat: 521 / 75

Advancing to step 4:
The number 75 fits into 521 6 times, leaving a remainder of 71.
Write down 6 as next digit of the result. 
Result so far: 76.0
The remainder is 71 after subtracting 450 from 521.
Grab the next digit (2) from the dividend, add it to 71, then carry on: 712 / 75

Let's proceed to step 5:
If we divide 712 by 75, we get 9 and a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 769.0
Deduct 675 from 712 and we're left with 37.
Fetch the next digit (6) from the dividend, attach it to 37 and continue: 376 / 75

Advancing to step 6:
The number 75 fits into 376 5 times, leaving a remainder of 1.
Write down 5 as next digit of the result. 
Result so far: 7695.0
Subtracting 375 from 376 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
If we divide 10 by 75, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 7695.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
75 goes into 100 1 times with a remainder of 25.
The next digit of our result is 1. 
Result so far: 7695.01
Deduct 75 from 100 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 9:
250 divided by 75 is 3 with a remainder of 25.
Put 3 as the next digit of the answer. 
Result so far: 7695.013
Subtracting 225 from 250 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.

Advancing to step 10:
The number 75 fits into 250 3 times, leaving a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 7695.0133
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 7695.0133 with a remainder of 0.00025.