638366 divided by 2 
We're looking to find how many times 2 goes into 638366.

Step 1:
When dividing 6 by 2, we get 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 6 away from 6, we end up with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 2

Advancing to step 2:
When dividing 3 by 2, we get 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
Subtracting 2 from 3 leaves us with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 2

Moving on to step 3:
When dividing 18 by 2, we get 9 with a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 319.0
Deduct 18 from 18 and we're left with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 2

On to step 4:
2 can be fit into 3 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 3191.0
Deduct 2 from 3 and we're left with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 2

Let's proceed to step 5:
2 can be fit into 16 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 31918.0
The remainder is 0 after subtracting 16 from 16.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 2

Going ahead to step 6:
When dividing 6 by 2, we get 3 with a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 319183.0
If we subtract 6 from 6, we get 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:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 319183.0
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.

Let's proceed to step 8:
The number 2 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 319183.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 319183.0 and a remainder of 0.0.