We're dividing 558069 by 20 
The aim is to understand the frequency of 20 in 558069.

Going ahead to step 1:
If we divide 5 by 20, we get 0 and a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 20

Let's proceed to step 2:
20 can be fit into 55 2 times, resulting in a remainder of 15.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 40 from 55 leaves us with 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 20

Let's proceed to step 3:
When dividing 158 by 20, we get 7 with a remainder of 18.
Put 7 as the next digit of the answer. 
Result so far: 27.0
Subtracting 140 from 158 leaves us with 18.
Bring next digit (0) of the dividend behind the 18 and repeat the process: 180 / 20

Advancing to step 4:
20 goes into 180 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 279.0
If we take 180 away from 180, we end up with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 20

Advancing to step 5:
When dividing 6 by 20, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 2790.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (9) from the dividend and append it to 6, then repeat: 69 / 20

Step 6:
When dividing 69 by 20, we get 3 with a remainder of 9.
Use 3 as the next digit of our solution. 
Result so far: 27903.0
The remainder is 9 after subtracting 60 from 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 7:
The number 20 fits into 90 4 times, leaving a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 27903.4
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
100 divided by 20 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 27903.45
If we take 100 away from 100, we end up 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.

Advancing to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 27903.45
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.

Moving on to step 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 27903.45
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.

The final result is 27903.45 with a remainder of 0.0.