We're dividing 99660045 by 765 
The aim is to understand the frequency of 765 in 99660045.

Step 1:
765 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 765

Step 2:
99 divided by 765 is 0 with a remainder of 99.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 99 after subtracting 0 from 99.
Include the next digit (6) from the dividend after 99, then repeat: 996 / 765

Step 3:
When dividing 996 by 765, we get 1 with a remainder of 231.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 231 after subtracting 765 from 996.
Append the next digit (6) from the dividend to 231 and continue with: 2316 / 765

Moving on to step 4:
765 can be fit into 2316 3 times, resulting in a remainder of 21.
The next digit of our result is 3. 
Result so far: 13.0
Subtract 2295 from 2316 to get 21.
Grab the next digit (0) from the dividend, add it to 21, then carry on: 210 / 765

Let's proceed to step 5:
The number 765 fits into 210 0 times, leaving a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 130.0
If we take 0 away from 210, we end up with 210.
Bring next digit (0) of the dividend behind the 210 and repeat the process: 2100 / 765

On to step 6:
2100 divided by 765 is 2 with a remainder of 570.
The number 2 becomes the next digit in our result. 
Result so far: 1302.0
If we subtract 1530 from 2100, we get 570.
Append the next digit (4) from the dividend to 570 and continue with: 5704 / 765

Going ahead to step 7:
If we divide 5704 by 765, we get 7 and a remainder of 349.
Use 7 as the next digit of our solution. 
Result so far: 13027.0
If we take 5355 away from 5704, we end up with 349.
Bring next digit (5) of the dividend behind the 349 and repeat the process: 3495 / 765

Moving on to step 8:
765 goes into 3495 4 times with a remainder of 435.
The number 4 becomes the next digit in our result. 
Result so far: 130274.0
The remainder is 435 after subtracting 3060 from 3495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Going ahead to step 9:
4350 divided by 765 is 5 with a remainder of 525.
Write down 5 as next digit of the result. 
Result so far: 130274.5
The remainder is 525 after subtracting 3825 from 4350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Advancing to step 10:
765 goes into 5250 6 times with a remainder of 660.
Write down 6 as next digit of the result. 
Result so far: 130274.56
Deduct 4590 from 5250 and we're left with 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Let's proceed to step 11:
When dividing 6600 by 765, we get 8 with a remainder of 480.
The number 8 becomes the next digit in our result. 
Result so far: 130274.568
If we take 6120 away from 6600, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 12:
765 can be fit into 4800 6 times, resulting in a remainder of 210.
The next digit of our result is 6. 
Result so far: 130274.5686
If we subtract 4590 from 4800, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 13:
When dividing 2100 by 765, we get 2 with a remainder of 570.
The number 2 becomes the next digit in our result. 
Result so far: 130274.56862
If we subtract 1530 from 2100, we get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Going ahead to step 14:
765 can be fit into 5700 7 times, resulting in a remainder of 345.
The next digit of our result is 7. 
Result so far: 130274.568627
Subtracting 5355 from 5700 leaves us with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Step 15:
765 goes into 3450 4 times with a remainder of 390.
The next digit of our result is 4. 
Result so far: 130274.5686274
Deduct 3060 from 3450 and we're left with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Advancing to step 16:
The number 765 fits into 3900 5 times, leaving a remainder of 75.
Record the quotient 5 as the next digit in the result. 
Result so far: 130274.56862745
If we take 3825 away from 3900, we end up with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

The final result is 130274.56862745 with a remainder of 7.5e-08.