449770 divided by 20 
The aim is to understand the frequency of 20 in 449770.

Moving on to step 1:
When dividing 4 by 20, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 20

Step 2:
20 goes into 44 2 times with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 40 from 44, we get 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 20

Moving on to step 3:
20 can be fit into 49 2 times, resulting in a remainder of 9.
Put 2 as the next digit of the answer. 
Result so far: 22.0
Subtract 40 from 49 to get 9.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 20

Going ahead to step 4:
The number 20 fits into 97 4 times, leaving a remainder of 17.
The next digit of our result is 4. 
Result so far: 224.0
Subtract 80 from 97 to get 17.
Include the next digit (7) from the dividend after 17, then repeat: 177 / 20

Let's proceed to step 5:
20 can be fit into 177 8 times, resulting in a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 2248.0
Subtracting 160 from 177 leaves us with 17.
Include the next digit (0) from the dividend after 17, then repeat: 170 / 20

Going ahead to step 6:
20 goes into 170 8 times with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 22488.0
If we subtract 160 from 170, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 7:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 22488.5
If we subtract 100 from 100, 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.

Advancing to step 8:
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: 22488.5
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.

Moving on to step 9:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 22488.5
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.

In conclusion, the division gives 22488.5 with a balance of 0.0.