860579 divided by 20 
The aim is to understand the frequency of 20 in 860579.

Step 1:
20 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 20

Going ahead to step 2:
The number 20 fits into 86 4 times, leaving a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 80 away from 86, we end up with 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 20

Going ahead to step 3:
20 goes into 60 3 times with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 43.0
Subtracting 60 from 60 leaves us with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 20

On to step 4:
If we divide 5 by 20, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 430.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 20

Advancing to step 5:
20 goes into 57 2 times with a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 4302.0
The remainder is 17 after subtracting 40 from 57.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 20

Let's proceed to step 6:
The number 20 fits into 179 8 times, leaving a remainder of 19.
The number 8 becomes the next digit in our result. 
Result so far: 43028.0
If we subtract 160 from 179, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Let's proceed to step 7:
When dividing 190 by 20, we get 9 with a remainder of 10.
Use 9 as the next digit of our solution. 
Result so far: 43028.9
If we take 180 away from 190, we end up 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.

Moving on to step 8:
When dividing 100 by 20, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 43028.95
Deduct 100 from 100 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.

Let's proceed to step 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 43028.95
Subtract 0 from 0 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 10:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 43028.95
If we subtract 0 from 0, we 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.

After the division, we end up with 43028.95 and a remainder of 0.0.