We're dividing 40420205 by 999 
We're looking to find how many times 999 goes into 40420205.

Step 1:
999 can be fit into 4 0 times, resulting in 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.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 999

Moving on to step 2:
40 divided by 999 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Include the next digit (4) from the dividend after 40, then repeat: 404 / 999

Going ahead to step 3:
999 can be fit into 404 0 times, resulting in a remainder of 404.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 404 to get 404.
Bring next digit (2) of the dividend behind the 404 and repeat the process: 4042 / 999

Let's proceed to step 4:
999 can be fit into 4042 4 times, resulting in a remainder of 46.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 3996 from 4042 to get 46.
Fetch the next digit (0) from the dividend, attach it to 46 and continue: 460 / 999

Advancing to step 5:
When dividing 460 by 999, we get 0 with a remainder of 460.
Write down 0 as next digit of the result. 
Result so far: 40.0
Subtract 0 from 460 to get 460.
Bring next digit (2) of the dividend behind the 460 and repeat the process: 4602 / 999

On to step 6:
4602 divided by 999 is 4 with a remainder of 606.
The number 4 becomes the next digit in our result. 
Result so far: 404.0
Subtract 3996 from 4602 to get 606.
Fetch the next digit (0) from the dividend, attach it to 606 and continue: 6060 / 999

Going ahead to step 7:
999 goes into 6060 6 times with a remainder of 66.
Put 6 as the next digit of the answer. 
Result so far: 4046.0
If we subtract 5994 from 6060, we get 66.
Bring next digit (5) of the dividend behind the 66 and repeat the process: 665 / 999

Going ahead to step 8:
999 goes into 665 0 times with a remainder of 665.
Use 0 as the next digit of our solution. 
Result so far: 40460.0
Subtract 0 from 665 to get 665.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

On to step 9:
999 can be fit into 6650 6 times, resulting in a remainder of 656.
Record the quotient 6 as the next digit in the result. 
Result so far: 40460.6
If we take 5994 away from 6650, we end up with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Step 10:
The number 999 fits into 6560 6 times, leaving a remainder of 566.
The number 6 becomes the next digit in our result. 
Result so far: 40460.66
Deduct 5994 from 6560 and we're left with 566.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5660, and continue the process.

After the division, we end up with 40460.66 and a remainder of 0.566.