We're dividing 20728765 by 553 
The aim is to understand the frequency of 553 in 20728765.

Step 1:
When dividing 2 by 553, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 553

Let's proceed to step 2:
When dividing 20 by 553, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 553

Let's proceed to step 3:
When dividing 207 by 553, we get 0 with a remainder of 207.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 207, we get 207.
Take the next digit (2) from the dividend and append it to 207, then repeat: 2072 / 553

Step 4:
The number 553 fits into 2072 3 times, leaving a remainder of 413.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 413 after subtracting 1659 from 2072.
Grab the next digit (8) from the dividend, add it to 413, then carry on: 4138 / 553

Advancing to step 5:
If we divide 4138 by 553, we get 7 and a remainder of 267.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtracting 3871 from 4138 leaves us with 267.
Fetch the next digit (7) from the dividend, attach it to 267 and continue: 2677 / 553

Going ahead to step 6:
The number 553 fits into 2677 4 times, leaving a remainder of 465.
The number 4 becomes the next digit in our result. 
Result so far: 374.0
Subtracting 2212 from 2677 leaves us with 465.
Fetch the next digit (6) from the dividend, attach it to 465 and continue: 4656 / 553

Advancing to step 7:
When dividing 4656 by 553, we get 8 with a remainder of 232.
Use 8 as the next digit of our solution. 
Result so far: 3748.0
Deduct 4424 from 4656 and we're left with 232.
Take the next digit (5) from the dividend and append it to 232, then repeat: 2325 / 553

On to step 8:
553 goes into 2325 4 times with a remainder of 113.
The number 4 becomes the next digit in our result. 
Result so far: 37484.0
Subtract 2212 from 2325 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

On to step 9:
1130 divided by 553 is 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 37484.2
Deduct 1106 from 1130 and we're left 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 10:
553 can be fit into 240 0 times, resulting in a remainder of 240.
The next digit of our result is 0. 
Result so far: 37484.2
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 11:
553 can be fit into 2400 4 times, resulting in a remainder of 188.
The next digit of our result is 4. 
Result so far: 37484.204
Subtracting 2212 from 2400 leaves us with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

On to step 12:
553 can be fit into 1880 3 times, resulting in a remainder of 221.
The number 3 becomes the next digit in our result. 
Result so far: 37484.2043
The remainder is 221 after subtracting 1659 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Advancing to step 13:
When dividing 2210 by 553, we get 3 with a remainder of 551.
Put 3 as the next digit of the answer. 
Result so far: 37484.20433
The remainder is 551 after subtracting 1659 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

The final result is 37484.20433 with a remainder of 0.000551.