304440 ÷ 20 
The aim is to understand the frequency of 20 in 304440.

Moving on to step 1:
20 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 20

Step 2:
20 can be fit into 30 1 times, resulting in a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
If we take 20 away from 30, we end up with 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 20

Let's proceed to step 3:
If we divide 104 by 20, we get 5 and a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 15.0
The remainder is 4 after subtracting 100 from 104.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 20

Going ahead to step 4:
If we divide 44 by 20, we get 2 and a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 152.0
If we take 40 away from 44, we end up with 4.
Append the next digit (4) from the dividend to 4 and continue with: 44 / 20

Advancing to step 5:
20 can be fit into 44 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 1522.0
If we take 40 away from 44, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 20

Going ahead to step 6:
40 divided by 20 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 15222.0
If we subtract 40 from 40, 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.

Let's proceed to step 7:
When dividing 0 by 20, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 15222.0
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.

Advancing to step 8:
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: 15222.0
If we take 0 away from 0, 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.

The final outcome is 15222.0, with a leftover of 0.0.