We're dividing 391469 by 3 
Let's see how many times 3 fits into 391469.

Going ahead to step 1:
If we divide 3 by 3, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 3 from 3 to get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 3

Let's proceed to step 2:
The number 3 fits into 9 3 times, leaving a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 0 after subtracting 9 from 9.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 3

Step 3:
3 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 130.0
If we take 0 away from 1, we end up with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 3

Moving on to step 4:
3 can be fit into 14 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 1304.0
Subtracting 12 from 14 leaves us with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 3

Moving on to step 5:
3 goes into 26 8 times with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 13048.0
The remainder is 2 after subtracting 24 from 26.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 3

Let's proceed to step 6:
3 can be fit into 29 9 times, resulting in a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 130489.0
The remainder is 2 after subtracting 27 from 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
When dividing 20 by 3, we get 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 130489.6
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
When dividing 20 by 3, we get 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 130489.66
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 130489.66 with a remainder of 0.002.