280453 ÷ 20 
The aim is to understand the frequency of 20 in 280453.

Advancing to step 1:
2 divided by 20 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 20

On to step 2:
When dividing 28 by 20, we get 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 20 from 28 leaves us with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 20

Let's proceed to step 3:
If we divide 80 by 20, we get 4 and a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Subtracting 80 from 80 leaves us with 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 20

Moving on to step 4:
If we divide 4 by 20, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 140.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 20

On to step 5:
If we divide 45 by 20, we get 2 and a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 1402.0
If we subtract 40 from 45, we get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 20

Moving on to step 6:
20 goes into 53 2 times with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 14022.0
Subtracting 40 from 53 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
The number 20 fits into 130 6 times, leaving a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 14022.6
If we take 120 away from 130, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
If we divide 100 by 20, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 14022.65
If we take 100 away from 100, 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.

Step 9:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 14022.65
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.

Advancing to step 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 14022.65
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 14022.65 with a balance of 0.0.