478387 ÷ 3 
We want to divide 478387 by 3.

Going ahead to step 1:
When dividing 4 by 3, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 3 from 4, we get 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 3

Step 2:
When dividing 17 by 3, we get 5 with a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 15 away from 17, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 3

Let's proceed to step 3:
3 can be fit into 28 9 times, resulting in a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 159.0
Subtract 27 from 28 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 3

On to step 4:
When dividing 13 by 3, we get 4 with a remainder of 1.
Record the quotient 4 as the next digit in the result. 
Result so far: 1594.0
Deduct 12 from 13 and we're left with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 3

Going ahead to step 5:
3 can be fit into 18 6 times, resulting in a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 15946.0
If we take 18 away from 18, we end up with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 3

Step 6:
7 divided by 3 is 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 159462.0
The remainder is 1 after subtracting 6 from 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
3 goes into 10 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 159462.3
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 8:
10 divided by 3 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 159462.33
If we subtract 9 from 10, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 159462.33, with a leftover of 0.001.