We divide 663547 by 20
We want to figure out the number of times 663547 can be divided by 20.

Moving on to step 1:
When dividing 6 by 20, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 20

On to step 2:
66 divided by 20 is 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 60 from 66, we get 6.
Take the next digit (3) from the dividend and append it to 6, then repeat: 63 / 20

Let's proceed to step 3:
20 can be fit into 63 3 times, resulting in a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Subtracting 60 from 63 leaves us with 3.
Grab the next digit (5) from the dividend, add it to 3, then carry on: 35 / 20

Moving on to step 4:
20 goes into 35 1 times with a remainder of 15.
Write down 1 as next digit of the result. 
Result so far: 331.0
Deduct 20 from 35 and we're left with 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 20

Going ahead to step 5:
154 divided by 20 is 7 with a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 3317.0
If we subtract 140 from 154, we get 14.
Include the next digit (7) from the dividend after 14, then repeat: 147 / 20

Let's proceed to step 6:
The number 20 fits into 147 7 times, leaving a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 33177.0
Deduct 140 from 147 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
The number 20 fits into 70 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 33177.3
Deduct 60 from 70 and we're left 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.

Step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 33177.35
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.

Going ahead to step 9:
20 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 33177.35
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.

Advancing to step 10:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 33177.35
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.

In conclusion, the division gives 33177.35 with a balance of 0.0.