We look at the division of 72687839 by 2 
We're looking to find how many times 2 goes into 72687839.

Moving on to step 1:
When dividing 7 by 2, we get 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 6 from 7 to get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 2

Advancing to step 2:
If we divide 12 by 2, we get 6 and a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 36.0
Subtract 12 from 12 to get 0.
Grab the next digit (6) from the dividend, add it to 0, then carry on: 6 / 2

Moving on to step 3:
2 can be fit into 6 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 363.0
Subtract 6 from 6 to get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 2

Advancing to step 4:
8 divided by 2 is 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 3634.0
If we take 8 away from 8, we end up with 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 2

Step 5:
If we divide 7 by 2, we get 3 and a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 36343.0
Deduct 6 from 7 and we're left with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 2

Let's proceed to step 6:
18 divided by 2 is 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 363439.0
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 7:
If we divide 3 by 2, we get 1 and a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 3634391.0
Deduct 2 from 3 and we're left with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 2

Going ahead to step 8:
2 goes into 19 9 times with a remainder of 1.
The next digit of our result is 9. 
Result so far: 36343919.0
Subtract 18 from 19 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
The number 2 fits into 10 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 36343919.5
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.

Moving on to step 10:
0 divided by 2 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 36343919.5
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.

Going ahead to step 11:
When dividing 0 by 2, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 36343919.5
Subtracting 0 from 0 leaves us 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.

The final result is 36343919.5 with a remainder of 0.0.