We're dividing 580454 by 28 
The aim is to understand the frequency of 28 in 580454.

Going ahead to step 1:
28 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 28

Advancing to step 2:
If we divide 58 by 28, we get 2 and a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 56 away from 58, we end up with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 28

Advancing to step 3:
28 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
If we subtract 0 from 20, we get 20.
Take the next digit (4) from the dividend and append it to 20, then repeat: 204 / 28

Step 4:
The number 28 fits into 204 7 times, leaving a remainder of 8.
Record the quotient 7 as the next digit in the result. 
Result so far: 207.0
Subtracting 196 from 204 leaves us with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 28

Advancing to step 5:
28 goes into 85 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 2073.0
Deduct 84 from 85 and we're left with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 28

Let's proceed to step 6:
The number 28 fits into 14 0 times, leaving a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 20730.0
If we take 0 away from 14, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
28 can be fit into 140 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 20730.5
Subtract 140 from 140 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
28 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 20730.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
0 divided by 28 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 20730.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 20730.5, with a leftover of 0.0.