We look at the division of 638502 by 3 
We want to divide 638502 by 3.

Step 1:
6 divided by 3 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 6 from 6 and we're left with 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 3

Advancing to step 2:
The number 3 fits into 3 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Deduct 3 from 3 and we're left with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 3

Moving on to step 3:
3 goes into 8 2 times with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 212.0
Subtract 6 from 8 to get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 3

Going ahead to step 4:
If we divide 25 by 3, we get 8 and a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 2128.0
Subtract 24 from 25 to get 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 3

Moving on to step 5:
If we divide 10 by 3, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 21283.0
If we subtract 9 from 10, we get 1.
Fetch the next digit (2) from the dividend, attach it to 1 and continue: 12 / 3

Step 6:
3 can be fit into 12 4 times, resulting in a remainder of 0.
The next digit of our result is 4. 
Result so far: 212834.0
Deduct 12 from 12 and we're left 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.

On 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: 212834.0
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.

Step 8:
3 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 212834.0
Deduct 0 from 0 and we're left 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 212834.0 with a balance of 0.0.