We're dividing 152139 by 2 
We want to divide 152139 by 2.

Let's proceed to step 1:
2 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 2

Going ahead to step 2:
15 divided by 2 is 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 14 from 15 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

On to step 3:
If we divide 12 by 2, we get 6 and a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 76.0
If we take 12 away from 12, we end up with 0.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 2

Advancing to step 4:
2 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 760.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 2

Moving on to step 5:
When dividing 13 by 2, we get 6 with a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 7606.0
Subtracting 12 from 13 leaves us with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 2

On to step 6:
2 goes into 19 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 76069.0
Subtracting 18 from 19 leaves us 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.

Moving on to step 7:
The number 2 fits into 10 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 76069.5
If we take 10 away from 10, 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:
If we divide 0 by 2, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 76069.5
Subtract 0 from 0 to 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 9:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 76069.5
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 76069.5 and a remainder of 0.0.