We look at the division of 582945 by 28 
The aim is to understand the frequency of 28 in 582945.

Going ahead to step 1:
If we divide 5 by 28, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 28

Going ahead to step 2:
The number 28 fits into 58 2 times, leaving a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 2 after subtracting 56 from 58.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 28

Let's proceed to step 3:
The number 28 fits into 22 0 times, leaving a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 22, we get 22.
Fetch the next digit (9) from the dividend, attach it to 22 and continue: 229 / 28

On to step 4:
28 goes into 229 8 times with a remainder of 5.
The number 8 becomes the next digit in our result. 
Result so far: 208.0
Subtracting 224 from 229 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 28

Advancing to step 5:
54 divided by 28 is 1 with a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 2081.0
Deduct 28 from 54 and we're left with 26.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 28

Going ahead to step 6:
The number 28 fits into 265 9 times, leaving a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 20819.0
Subtract 252 from 265 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
If we divide 130 by 28, we get 4 and a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 20819.4
The remainder is 18 after subtracting 112 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
When dividing 180 by 28, we get 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 20819.46
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 9:
120 divided by 28 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 20819.464
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.

Advancing to step 10:
When dividing 80 by 28, we get 2 with a remainder of 24.
The next digit of our result is 2. 
Result so far: 20819.4642
If we subtract 56 from 80, we 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 11:
28 can be fit into 240 8 times, resulting in a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 20819.46428
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.

Let's proceed to step 12:
160 divided by 28 is 5 with a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 20819.464285
Deduct 140 from 160 and we're left 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.

Let's proceed to step 13:
The number 28 fits into 200 7 times, leaving a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 20819.4642857
The remainder is 4 after subtracting 196 from 200.
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 14:
If we divide 40 by 28, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 20819.46428571
Subtract 28 from 40 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 20819.46428571 and a remainder of 1.2e-08.