We're dividing 390549 by 3 
Let's see how many times 3 fits into 390549.

Step 1:
3 can be fit into 3 1 times, resulting in a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
If we take 3 away from 3, we end up with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 3

Step 2:
9 divided by 3 is 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 9 from 9, we get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 3

Step 3:
When dividing 0 by 3, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
Subtracting 0 from 0 leaves us with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 3

Let's proceed to step 4:
3 goes into 5 1 times with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 1301.0
If we subtract 3 from 5, we get 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 3

Let's proceed to step 5:
3 goes into 24 8 times with a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 13018.0
If we take 24 away from 24, we end up with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 3

Step 6:
9 divided by 3 is 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 130183.0
If we subtract 9 from 9, 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 7:
0 divided by 3 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 130183.0
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.

Step 8:
3 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 130183.0
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 130183.0 with a balance of 0.0.