501215 ÷ 2 
We want to divide 501215 by 2.

Moving on to step 1:
The number 2 fits into 5 2 times, leaving a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 1 after subtracting 4 from 5.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 2

Going ahead to step 2:
2 goes into 10 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 25.0
Subtracting 10 from 10 leaves us with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 2

Advancing to step 3:
2 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 250.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 2

Let's proceed to step 4:
12 divided by 2 is 6 with a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 2506.0
Subtract 12 from 12 to get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 2

Moving on to step 5:
2 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 25060.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 2

Advancing to step 6:
15 divided by 2 is 7 with a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 250607.0
Deduct 14 from 15 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 2 fits into 10 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 250607.5
If we subtract 10 from 10, 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.

Advancing to step 8:
0 divided by 2 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 250607.5
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.

Going ahead to step 9:
If we divide 0 by 2, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 250607.5
If we subtract 0 from 0, 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.

After the division, we end up with 250607.5 and a remainder of 0.0.