We're dividing 577805 by 20 
The aim is to understand the frequency of 20 in 577805.

Advancing to step 1:
If we divide 5 by 20, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 20

Advancing to step 2:
57 divided by 20 is 2 with a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 17 after subtracting 40 from 57.
Append the next digit (7) from the dividend to 17 and continue with: 177 / 20

Let's proceed to step 3:
177 divided by 20 is 8 with a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 28.0
Deduct 160 from 177 and we're left with 17.
Bring next digit (8) of the dividend behind the 17 and repeat the process: 178 / 20

Let's proceed to step 4:
20 goes into 178 8 times with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 288.0
If we take 160 away from 178, we end up with 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 20

Step 5:
If we divide 180 by 20, we get 9 and a remainder of 0.
The next digit of our result is 9. 
Result so far: 2889.0
Subtracting 180 from 180 leaves us with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 20

Step 6:
20 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 28890.0
Subtract 0 from 5 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
20 goes into 50 2 times with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 28890.2
The remainder is 10 after subtracting 40 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
100 divided by 20 is 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 28890.25
The remainder is 0 after subtracting 100 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
20 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 28890.25
Subtracting 0 from 0 leaves us 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.

Going ahead to step 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 28890.25
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.

Our division results in 28890.25 with a remaining 0.0.