Let's divide 38639 by 3
Let's see how many times 3 fits into 38639.

Step 1:
3 goes into 3 1 times with a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 3 from 3 and we're left with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 3

Step 2:
When dividing 8 by 3, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 12.0
If we take 6 away from 8, we end up with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 3

Moving on to step 3:
26 divided by 3 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 128.0
If we take 24 away from 26, we end up with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 3

Step 4:
3 goes into 23 7 times with a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 1287.0
The remainder is 2 after subtracting 21 from 23.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 3

On to step 5:
The number 3 fits into 29 9 times, leaving a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 12879.0
Subtracting 27 from 29 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.

Going ahead to step 6:
If we divide 20 by 3, we get 6 and a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 12879.6
Deduct 18 from 20 and we're left 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.

Moving on to step 7:
If we divide 20 by 3, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 12879.66
Subtract 18 from 20 to 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.

The final result is 12879.66 with a remainder of 0.002.