We're dividing 321828 by 20 
The aim is to understand the frequency of 20 in 321828.

Let's proceed to step 1:
When dividing 3 by 20, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 20

Going ahead to step 2:
If we divide 32 by 20, we get 1 and a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 20 away from 32, we end up with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 20

Moving on to step 3:
When dividing 121 by 20, we get 6 with a remainder of 1.
The next digit of our result is 6. 
Result so far: 16.0
Subtract 120 from 121 to get 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 20

Going ahead to step 4:
20 can be fit into 18 0 times, resulting in a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 160.0
Subtracting 0 from 18 leaves us with 18.
Append the next digit (2) from the dividend to 18 and continue with: 182 / 20

Let's proceed to step 5:
The number 20 fits into 182 9 times, leaving a remainder of 2.
The next digit of our result is 9. 
Result so far: 1609.0
The remainder is 2 after subtracting 180 from 182.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 20

Going ahead to step 6:
28 divided by 20 is 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 16091.0
If we subtract 20 from 28, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
When dividing 80 by 20, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 16091.4
Subtracting 80 from 80 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 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: 16091.4
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.

Moving on to step 9:
When dividing 0 by 20, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 16091.4
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 16091.4 with a remainder of 0.0.