We divide 478250 by 3
We're looking to find how many times 3 goes into 478250.

Moving on to step 1:
If we divide 4 by 3, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 3 away from 4, we end up with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 3

Let's proceed to step 2:
3 goes into 17 5 times with a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Deduct 15 from 17 and we're left with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 3

Going ahead to step 3:
When dividing 28 by 3, we get 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 159.0
Deduct 27 from 28 and we're left with 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 3

Let's proceed to step 4:
12 divided by 3 is 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 1594.0
Subtracting 12 from 12 leaves us with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 3

Going ahead to step 5:
The number 3 fits into 5 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 15941.0
If we subtract 3 from 5, we get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 3

Step 6:
20 divided by 3 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 159416.0
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.

On to step 7:
3 can be fit into 20 6 times, resulting in a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 159416.6
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.

Advancing to step 8:
If we divide 20 by 3, we get 6 and a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 159416.66
Subtracting 18 from 20 leaves us with 2.
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 outcome is 159416.66, with a leftover of 0.002.