We're dividing 28787520 by 720 
The aim is to understand the frequency of 720 in 28787520.

Moving on to step 1:
If we divide 2 by 720, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 720

Moving on to step 2:
28 divided by 720 is 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 28 after subtracting 0 from 28.
Append the next digit (7) from the dividend to 28 and continue with: 287 / 720

On to step 3:
If we divide 287 by 720, we get 0 and a remainder of 287.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 287 leaves us with 287.
Take the next digit (8) from the dividend and append it to 287, then repeat: 2878 / 720

Moving on to step 4:
When dividing 2878 by 720, we get 3 with a remainder of 718.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 2160 from 2878 leaves us with 718.
Fetch the next digit (7) from the dividend, attach it to 718 and continue: 7187 / 720

On to step 5:
7187 divided by 720 is 9 with a remainder of 707.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Subtract 6480 from 7187 to get 707.
Fetch the next digit (5) from the dividend, attach it to 707 and continue: 7075 / 720

Moving on to step 6:
7075 divided by 720 is 9 with a remainder of 595.
The number 9 becomes the next digit in our result. 
Result so far: 399.0
Subtracting 6480 from 7075 leaves us with 595.
Grab the next digit (2) from the dividend, add it to 595, then carry on: 5952 / 720

Going ahead to step 7:
5952 divided by 720 is 8 with a remainder of 192.
Record the quotient 8 as the next digit in the result. 
Result so far: 3998.0
Deduct 5760 from 5952 and we're left with 192.
Grab the next digit (0) from the dividend, add it to 192, then carry on: 1920 / 720

Advancing to step 8:
The number 720 fits into 1920 2 times, leaving a remainder of 480.
Record the quotient 2 as the next digit in the result. 
Result so far: 39982.0
Deduct 1440 from 1920 and we're left 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.

Moving on to step 9:
4800 divided by 720 is 6 with a remainder of 480.
Write down 6 as next digit of the result. 
Result so far: 39982.6
If we subtract 4320 from 4800, we get 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 10:
720 can be fit into 4800 6 times, resulting in a remainder of 480.
Use 6 as the next digit of our solution. 
Result so far: 39982.66
Subtract 4320 from 4800 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The final result is 39982.66 with a remainder of 0.48.