We look at the division of 78699008 by 728 
The aim is to understand the frequency of 728 in 78699008.

Going ahead to step 1:
7 divided by 728 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 728

Step 2:
78 divided by 728 is 0 with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (6) from the dividend to 78 and continue with: 786 / 728

Let's proceed to step 3:
728 can be fit into 786 1 times, resulting in a remainder of 58.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 728 from 786 leaves us with 58.
Append the next digit (9) from the dividend to 58 and continue with: 589 / 728

Advancing to step 4:
When dividing 589 by 728, we get 0 with a remainder of 589.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 589, we get 589.
Include the next digit (9) from the dividend after 589, then repeat: 5899 / 728

Moving on to step 5:
728 goes into 5899 8 times with a remainder of 75.
Write down 8 as next digit of the result. 
Result so far: 108.0
If we subtract 5824 from 5899, we get 75.
Append the next digit (0) from the dividend to 75 and continue with: 750 / 728

On to step 6:
728 goes into 750 1 times with a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 1081.0
Subtracting 728 from 750 leaves us with 22.
Take the next digit (0) from the dividend and append it to 22, then repeat: 220 / 728

On to step 7:
The number 728 fits into 220 0 times, leaving a remainder of 220.
Record the quotient 0 as the next digit in the result. 
Result so far: 10810.0
Deduct 0 from 220 and we're left with 220.
Include the next digit (8) from the dividend after 220, then repeat: 2208 / 728

On to step 8:
When dividing 2208 by 728, we get 3 with a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 108103.0
If we take 2184 away from 2208, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
If we divide 240 by 728, we get 0 and a remainder of 240.
The number 0 becomes the next digit in our result. 
Result so far: 108103.0
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 10:
When dividing 2400 by 728, we get 3 with a remainder of 216.
Write down 3 as next digit of the result. 
Result so far: 108103.03
Subtracting 2184 from 2400 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 11:
If we divide 2160 by 728, we get 2 and a remainder of 704.
Record the quotient 2 as the next digit in the result. 
Result so far: 108103.032
If we take 1456 away from 2160, we end up with 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Step 12:
The number 728 fits into 7040 9 times, leaving a remainder of 488.
The next digit of our result is 9. 
Result so far: 108103.0329
Subtract 6552 from 7040 to get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Moving on to step 13:
When dividing 4880 by 728, we get 6 with a remainder of 512.
The next digit of our result is 6. 
Result so far: 108103.03296
Deduct 4368 from 4880 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Moving on to step 14:
The number 728 fits into 5120 7 times, leaving a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 108103.032967
Subtract 5096 from 5120 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 15:
When dividing 240 by 728, we get 0 with a remainder of 240.
The next digit of our result is 0. 
Result so far: 108103.032967
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 16:
When dividing 2400 by 728, we get 3 with a remainder of 216.
Put 3 as the next digit of the answer. 
Result so far: 108103.03296703
Deduct 2184 from 2400 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The final outcome is 108103.03296703, with a leftover of 2.16e-07.