487454 ÷ 20 
We're looking to find how many times 20 goes into 487454.

Let's proceed to step 1:
The number 20 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (8) of the dividend behind the 4 and repeat the process: 48 / 20

Step 2:
20 goes into 48 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 8 after subtracting 40 from 48.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 20

Moving on to step 3:
20 can be fit into 87 4 times, resulting in a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
Subtracting 80 from 87 leaves us with 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 20

Moving on to step 4:
If we divide 74 by 20, we get 3 and a remainder of 14.
The number 3 becomes the next digit in our result. 
Result so far: 243.0
Subtract 60 from 74 to get 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 20

Moving on to step 5:
When dividing 145 by 20, we get 7 with a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 2437.0
The remainder is 5 after subtracting 140 from 145.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 20

On to step 6:
54 divided by 20 is 2 with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 24372.0
Subtract 40 from 54 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 7:
When dividing 140 by 20, we get 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 24372.7
If we take 140 away from 140, 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.

Going ahead to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 24372.7
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.

Going ahead to step 9:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 24372.7
The remainder is 0 after subtracting 0 from 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 24372.7 with a balance of 0.0.