789576 ÷ 20 
The aim is to understand the frequency of 20 in 789576.

Going ahead to step 1:
The number 20 fits into 7 0 times, leaving a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 20

Moving on to step 2:
If we divide 78 by 20, we get 3 and a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 60 away from 78, we end up with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 20

Step 3:
20 can be fit into 189 9 times, resulting in a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Deduct 180 from 189 and we're left with 9.
Bring next digit (5) of the dividend behind the 9 and repeat the process: 95 / 20

Advancing to step 4:
20 goes into 95 4 times with a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 394.0
Subtract 80 from 95 to get 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 20

Let's proceed to step 5:
20 can be fit into 157 7 times, resulting in a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 3947.0
Deduct 140 from 157 and we're left with 17.
Fetch the next digit (6) from the dividend, attach it to 17 and continue: 176 / 20

Moving on to step 6:
If we divide 176 by 20, we get 8 and a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 39478.0
Deduct 160 from 176 and we're left with 16.
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 7:
The number 20 fits into 160 8 times, leaving a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 39478.8
The remainder is 0 after subtracting 160 from 160.
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 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39478.8
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.

Moving on to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 39478.8
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.

The quotient of the division is 39478.8, and the remainder is 0.0.