Let's divide 53142532 by 75
The aim is to understand the frequency of 75 in 53142532.

Step 1:
When dividing 5 by 75, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 75

Moving on to step 2:
53 divided by 75 is 0 with a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 75

On to step 3:
The number 75 fits into 531 7 times, leaving a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 525 from 531 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 75

Step 4:
When dividing 64 by 75, we get 0 with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 70.0
If we subtract 0 from 64, we get 64.
Fetch the next digit (2) from the dividend, attach it to 64 and continue: 642 / 75

Advancing to step 5:
When dividing 642 by 75, we get 8 with a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 708.0
The remainder is 42 after subtracting 600 from 642.
Take the next digit (5) from the dividend and append it to 42, then repeat: 425 / 75

On to step 6:
When dividing 425 by 75, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 7085.0
If we subtract 375 from 425, we get 50.
Grab the next digit (3) from the dividend, add it to 50, then carry on: 503 / 75

On to step 7:
If we divide 503 by 75, we get 6 and a remainder of 53.
Write down 6 as next digit of the result. 
Result so far: 70856.0
If we subtract 450 from 503, we get 53.
Append the next digit (2) from the dividend to 53 and continue with: 532 / 75

Going ahead to step 8:
The number 75 fits into 532 7 times, leaving a remainder of 7.
The next digit of our result is 7. 
Result so far: 708567.0
If we subtract 525 from 532, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
When dividing 70 by 75, we get 0 with a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 708567.0
Subtract 0 from 70 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
75 can be fit into 700 9 times, resulting in a remainder of 25.
Put 9 as the next digit of the answer. 
Result so far: 708567.09
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.

Going ahead to step 11:
75 can be fit into 250 3 times, resulting in a remainder of 25.
Record the quotient 3 as the next digit in the result. 
Result so far: 708567.093
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.

Step 12:
75 goes into 250 3 times with a remainder of 25.
The number 3 becomes the next digit in our result. 
Result so far: 708567.0933
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 708567.0933 with a remainder of 0.00025.