We divide 547781 by 28
The aim is to understand the frequency of 28 in 547781.

Step 1:
When dividing 5 by 28, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 28

Moving on to step 2:
The number 28 fits into 54 1 times, leaving a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 28 away from 54, we end up with 26.
Append the next digit (7) from the dividend to 26 and continue with: 267 / 28

Moving on to step 3:
The number 28 fits into 267 9 times, leaving a remainder of 15.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 252 away from 267, we end up with 15.
Take the next digit (7) from the dividend and append it to 15, then repeat: 157 / 28

Advancing to step 4:
157 divided by 28 is 5 with a remainder of 17.
The next digit of our result is 5. 
Result so far: 195.0
If we subtract 140 from 157, we get 17.
Grab the next digit (8) from the dividend, add it to 17, then carry on: 178 / 28

Advancing to step 5:
When dividing 178 by 28, we get 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 1956.0
Subtract 168 from 178 to get 10.
Bring next digit (1) of the dividend behind the 10 and repeat the process: 101 / 28

Going ahead to step 6:
If we divide 101 by 28, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 19563.0
If we subtract 84 from 101, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
170 divided by 28 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 19563.6
Subtracting 168 from 170 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
If we divide 20 by 28, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 19563.6
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
28 can be fit into 200 7 times, resulting in a remainder of 4.
Put 7 as the next digit of the answer. 
Result so far: 19563.607
Deduct 196 from 200 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
40 divided by 28 is 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 19563.6071
Subtracting 28 from 40 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 11:
28 goes into 120 4 times with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 19563.60714
Subtract 112 from 120 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
The number 28 fits into 80 2 times, leaving a remainder of 24.
The next digit of our result is 2. 
Result so far: 19563.607142
Subtract 56 from 80 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 13:
240 divided by 28 is 8 with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 19563.6071428
Subtract 224 from 240 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 14:
160 divided by 28 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 19563.60714285
If we subtract 140 from 160, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 19563.60714285, with a leftover of 2e-08.