We're dividing 64666139 by 2 
We want to figure out the number of times 64666139 can be divided by 2.

Going ahead to step 1:
6 divided by 2 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
If we take 6 away from 6, we end up with 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 2

On to step 2:
If we divide 4 by 2, we get 2 and a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
Subtract 4 from 4 to get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 2

Step 3:
When dividing 6 by 2, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 323.0
Subtract 6 from 6 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 2

Step 4:
2 can be fit into 6 3 times, resulting in a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 3233.0
Deduct 6 from 6 and we're left with 0.
Fetch the next digit (6) from the dividend, attach it to 0 and continue: 6 / 2

Going ahead to step 5:
2 goes into 6 3 times with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 32333.0
Deduct 6 from 6 and we're left with 0.
Bring next digit (1) of the dividend behind the 0 and repeat the process: 1 / 2

Let's proceed to step 6:
If we divide 1 by 2, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 323330.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 2

Advancing to step 7:
13 divided by 2 is 6 with a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 3233306.0
The remainder is 1 after subtracting 12 from 13.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 2

Advancing to step 8:
If we divide 19 by 2, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 32333069.0
Deduct 18 from 19 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.

On to step 9:
2 goes into 10 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 32333069.5
The remainder is 0 after subtracting 10 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 2, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 32333069.5
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.

Advancing to step 11:
2 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 32333069.5
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.

In conclusion, the division gives 32333069.5 with a balance of 0.0.