74999809 ÷ 752 
The aim is to understand the frequency of 752 in 74999809.

Going ahead to step 1:
If we divide 7 by 752, we get 0 and 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.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 752

Moving on to step 2:
When dividing 74 by 752, we get 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 74, we end up with 74.
Bring next digit (9) of the dividend behind the 74 and repeat the process: 749 / 752

On to step 3:
The number 752 fits into 749 0 times, leaving a remainder of 749.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 749 and we're left with 749.
Take the next digit (9) from the dividend and append it to 749, then repeat: 7499 / 752

Step 4:
If we divide 7499 by 752, we get 9 and a remainder of 731.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 6768 away from 7499, we end up with 731.
Include the next digit (9) from the dividend after 731, then repeat: 7319 / 752

Going ahead to step 5:
752 goes into 7319 9 times with a remainder of 551.
Put 9 as the next digit of the answer. 
Result so far: 99.0
Deduct 6768 from 7319 and we're left with 551.
Append the next digit (8) from the dividend to 551 and continue with: 5518 / 752

Let's proceed to step 6:
5518 divided by 752 is 7 with a remainder of 254.
Put 7 as the next digit of the answer. 
Result so far: 997.0
If we subtract 5264 from 5518, we get 254.
Include the next digit (0) from the dividend after 254, then repeat: 2540 / 752

Advancing to step 7:
2540 divided by 752 is 3 with a remainder of 284.
The next digit of our result is 3. 
Result so far: 9973.0
Subtract 2256 from 2540 to get 284.
Take the next digit (9) from the dividend and append it to 284, then repeat: 2849 / 752

On to step 8:
If we divide 2849 by 752, we get 3 and a remainder of 593.
Use 3 as the next digit of our solution. 
Result so far: 99733.0
The remainder is 593 after subtracting 2256 from 2849.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5930, and continue the process.

On to step 9:
When dividing 5930 by 752, we get 7 with a remainder of 666.
The number 7 becomes the next digit in our result. 
Result so far: 99733.7
Deduct 5264 from 5930 and we're left with 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Let's proceed to step 10:
752 goes into 6660 8 times with a remainder of 644.
The number 8 becomes the next digit in our result. 
Result so far: 99733.78
Subtract 6016 from 6660 to get 644.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6440, and continue the process.

Let's proceed to step 11:
The number 752 fits into 6440 8 times, leaving a remainder of 424.
Use 8 as the next digit of our solution. 
Result so far: 99733.788
If we subtract 6016 from 6440, we get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

The final result is 99733.788 with a remainder of 0.0424.