66408 divided by 20 
We want to figure out the number of times 66408 can be divided by 20.

On to step 1:
If we divide 6 by 20, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 20

Going ahead to step 2:
20 can be fit into 66 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 60 from 66, we get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 20

Moving on to step 3:
64 divided by 20 is 3 with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we take 60 away from 64, we end up with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 20

Advancing to step 4:
The number 20 fits into 40 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 332.0
If we subtract 40 from 40, we get 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 20

Let's proceed to step 5:
20 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 3320.0
The remainder is 8 after subtracting 0 from 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 6:
The number 20 fits into 80 4 times, leaving a remainder of 0.
The next digit of our result is 4. 
Result so far: 3320.4
If we subtract 80 from 80, 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.

Step 7:
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: 3320.4
Subtract 0 from 0 to 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.

On to step 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3320.4
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.

In conclusion, the division gives 3320.4 with a balance of 0.0.