Let's divide 638263 by 12
Our goal is to divide 638263 by 12.

On to step 1:
6 divided by 12 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 12

Going ahead to step 2:
When dividing 63 by 12, we get 5 with a remainder of 3.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 3 after subtracting 60 from 63.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 12

Going ahead to step 3:
If we divide 38 by 12, we get 3 and a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 53.0
Subtracting 36 from 38 leaves us with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 12

Going ahead to step 4:
If we divide 22 by 12, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 531.0
Subtracting 12 from 22 leaves us with 10.
Bring next digit (6) of the dividend behind the 10 and repeat the process: 106 / 12

Moving on to step 5:
12 goes into 106 8 times with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 5318.0
Subtracting 96 from 106 leaves us with 10.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 12

Moving on to step 6:
The number 12 fits into 103 8 times, leaving a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 53188.0
Subtract 96 from 103 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
12 goes into 70 5 times with a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 53188.5
If we take 60 away from 70, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
The number 12 fits into 100 8 times, leaving a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 53188.58
The remainder is 4 after subtracting 96 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
The next digit of our result is 3. 
Result so far: 53188.583
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
When dividing 40 by 12, we get 3 with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 53188.5833
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 53188.5833 and a remainder of 4e-05.