We look at the division of 549399 by 9 
Our goal is to divide 549399 by 9.

Step 1:
9 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 9

Advancing to step 2:
54 divided by 9 is 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Subtract 54 from 54 to get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 9

Step 3:
9 divided by 9 is 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 61.0
Deduct 9 from 9 and we're left with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 9

Advancing to step 4:
When dividing 3 by 9, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 610.0
If we subtract 0 from 3, we get 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 9

On to step 5:
9 can be fit into 39 4 times, resulting in a remainder of 3.
The next digit of our result is 4. 
Result so far: 6104.0
If we take 36 away from 39, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 9

Step 6:
39 divided by 9 is 4 with a remainder of 3.
The next digit of our result is 4. 
Result so far: 61044.0
Deduct 36 from 39 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 7:
9 can be fit into 30 3 times, resulting in a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 61044.3
If we subtract 27 from 30, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 8:
9 can be fit into 30 3 times, resulting in a remainder of 3.
Write down 3 as next digit of the result. 
Result so far: 61044.33
Subtract 27 from 30 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

After the division, we end up with 61044.33 and a remainder of 0.003.