We look at the division of 39757842 by 2 
We want to figure out the number of times 39757842 can be divided by 2.

Advancing to step 1:
The number 2 fits into 3 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 1 after subtracting 2 from 3.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 2

Advancing to step 2:
2 goes into 19 9 times with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 18 away from 19, we end up with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 2

Moving on to step 3:
If we divide 17 by 2, we get 8 and a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 198.0
Subtracting 16 from 17 leaves us with 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 2

Advancing to step 4:
If we divide 15 by 2, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 1987.0
The remainder is 1 after subtracting 14 from 15.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 2

Advancing to step 5:
When dividing 17 by 2, we get 8 with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 19878.0
Subtracting 16 from 17 leaves us with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 2

On to step 6:
When dividing 18 by 2, we get 9 with a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 198789.0
Subtract 18 from 18 to get 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 2

Advancing to step 7:
The number 2 fits into 4 2 times, leaving a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 1987892.0
The remainder is 0 after subtracting 4 from 4.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 2

Step 8:
If we divide 2 by 2, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 19878921.0
Subtracting 2 from 2 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.

Going ahead to step 9:
When dividing 0 by 2, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 19878921.0
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.

Let's proceed to step 10:
When dividing 0 by 2, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 19878921.0
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.

The final result is 19878921.0 with a remainder of 0.0.