We're dividing 245723 by 28 
The aim is to understand the frequency of 28 in 245723.

Step 1:
If we divide 2 by 28, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 28

On to step 2:
When dividing 24 by 28, we get 0 with a remainder of 24.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 24 after subtracting 0 from 24.
Append the next digit (5) from the dividend to 24 and continue with: 245 / 28

On to step 3:
28 can be fit into 245 8 times, resulting in a remainder of 21.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 21 after subtracting 224 from 245.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 28

Advancing to step 4:
217 divided by 28 is 7 with a remainder of 21.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Subtracting 196 from 217 leaves us with 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 28

Going ahead to step 5:
If we divide 212 by 28, we get 7 and a remainder of 16.
Write down 7 as next digit of the result. 
Result so far: 877.0
If we take 196 away from 212, we end up with 16.
Include the next digit (3) from the dividend after 16, then repeat: 163 / 28

Going ahead to step 6:
The number 28 fits into 163 5 times, leaving a remainder of 23.
The number 5 becomes the next digit in our result. 
Result so far: 8775.0
Deduct 140 from 163 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
28 goes into 230 8 times with a remainder of 6.
Put 8 as the next digit of the answer. 
Result so far: 8775.8
Deduct 224 from 230 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
60 divided by 28 is 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 8775.82
The remainder is 4 after subtracting 56 from 60.
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 9:
28 can be fit into 40 1 times, resulting in a remainder of 12.
The next digit of our result is 1. 
Result so far: 8775.821
Deduct 28 from 40 and we're left 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 10:
120 divided by 28 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 8775.8214
If we subtract 112 from 120, we 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 11:
When dividing 80 by 28, we get 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 8775.82142
Deduct 56 from 80 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.

Moving on to step 12:
28 goes into 240 8 times with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 8775.821428
The remainder is 16 after subtracting 224 from 240.
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 13:
28 goes into 160 5 times with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 8775.8214285
If we take 140 away from 160, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 14:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 8775.82142857
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.

The final outcome is 8775.82142857, with a leftover of 4e-09.