We look at the division of 66457252 by 750 
The aim is to understand the frequency of 750 in 66457252.

On to step 1:
750 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 750

Let's proceed to step 2:
The number 750 fits into 66 0 times, leaving a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Fetch the next digit (4) from the dividend, attach it to 66 and continue: 664 / 750

Advancing to step 3:
664 divided by 750 is 0 with a remainder of 664.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 664 after subtracting 0 from 664.
Take the next digit (5) from the dividend and append it to 664, then repeat: 6645 / 750

Advancing to step 4:
If we divide 6645 by 750, we get 8 and a remainder of 645.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 6000 from 6645 to get 645.
Fetch the next digit (7) from the dividend, attach it to 645 and continue: 6457 / 750

Advancing to step 5:
750 goes into 6457 8 times with a remainder of 457.
Use 8 as the next digit of our solution. 
Result so far: 88.0
Subtracting 6000 from 6457 leaves us with 457.
Take the next digit (2) from the dividend and append it to 457, then repeat: 4572 / 750

Moving on to step 6:
750 can be fit into 4572 6 times, resulting in a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 886.0
If we subtract 4500 from 4572, we get 72.
Fetch the next digit (5) from the dividend, attach it to 72 and continue: 725 / 750

Step 7:
The number 750 fits into 725 0 times, leaving a remainder of 725.
Record the quotient 0 as the next digit in the result. 
Result so far: 8860.0
Subtract 0 from 725 to get 725.
Take the next digit (2) from the dividend and append it to 725, then repeat: 7252 / 750

Advancing to step 8:
If we divide 7252 by 750, we get 9 and a remainder of 502.
Use 9 as the next digit of our solution. 
Result so far: 88609.0
Subtracting 6750 from 7252 leaves us with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Advancing to step 9:
5020 divided by 750 is 6 with a remainder of 520.
Write down 6 as next digit of the result. 
Result so far: 88609.6
Subtract 4500 from 5020 to get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Going ahead to step 10:
When dividing 5200 by 750, we get 6 with a remainder of 700.
The next digit of our result is 6. 
Result so far: 88609.66
Subtract 4500 from 5200 to get 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final result is 88609.66 with a remainder of 0.7.