560902 ÷ 20 
The aim is to understand the frequency of 20 in 560902.

Going ahead to step 1:
The number 20 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 20

Step 2:
The number 20 fits into 56 2 times, leaving a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 40 from 56 and we're left with 16.
Grab the next digit (0) from the dividend, add it to 16, then carry on: 160 / 20

Let's proceed to step 3:
160 divided by 20 is 8 with a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
Subtracting 160 from 160 leaves us with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 20

On to step 4:
If we divide 9 by 20, we get 0 and a remainder of 9.
The next digit of our result is 0. 
Result so far: 280.0
Subtract 0 from 9 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 20

Let's proceed to step 5:
When dividing 90 by 20, we get 4 with a remainder of 10.
The next digit of our result is 4. 
Result so far: 2804.0
The remainder is 10 after subtracting 80 from 90.
Append the next digit (2) from the dividend to 10 and continue with: 102 / 20

On to step 6:
When dividing 102 by 20, we get 5 with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 28045.0
Subtracting 100 from 102 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
When dividing 20 by 20, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 28045.1
Subtract 20 from 20 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.

Let's proceed to step 8:
When dividing 0 by 20, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 28045.1
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.

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: 28045.1
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 28045.1, and the remainder is 0.0.