39931049 divided by 278 
We want to divide 39931049 by 278.

Advancing to step 1:
When dividing 3 by 278, we get 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 278

Going ahead to step 2:
When dividing 39 by 278, we get 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Take the next digit (9) from the dividend and append it to 39, then repeat: 399 / 278

Going ahead to step 3:
278 can be fit into 399 1 times, resulting in a remainder of 121.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 278 from 399, we get 121.
Fetch the next digit (3) from the dividend, attach it to 121 and continue: 1213 / 278

Going ahead to step 4:
278 goes into 1213 4 times with a remainder of 101.
Write down 4 as next digit of the result. 
Result so far: 14.0
The remainder is 101 after subtracting 1112 from 1213.
Append the next digit (1) from the dividend to 101 and continue with: 1011 / 278

Going ahead to step 5:
The number 278 fits into 1011 3 times, leaving a remainder of 177.
The next digit of our result is 3. 
Result so far: 143.0
If we subtract 834 from 1011, we get 177.
Grab the next digit (0) from the dividend, add it to 177, then carry on: 1770 / 278

Advancing to step 6:
The number 278 fits into 1770 6 times, leaving a remainder of 102.
Use 6 as the next digit of our solution. 
Result so far: 1436.0
Deduct 1668 from 1770 and we're left with 102.
Include the next digit (4) from the dividend after 102, then repeat: 1024 / 278

Let's proceed to step 7:
If we divide 1024 by 278, we get 3 and a remainder of 190.
Record the quotient 3 as the next digit in the result. 
Result so far: 14363.0
The remainder is 190 after subtracting 834 from 1024.
Grab the next digit (9) from the dividend, add it to 190, then carry on: 1909 / 278

On to step 8:
If we divide 1909 by 278, we get 6 and a remainder of 241.
The next digit of our result is 6. 
Result so far: 143636.0
The remainder is 241 after subtracting 1668 from 1909.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Advancing to step 9:
If we divide 2410 by 278, we get 8 and a remainder of 186.
Write down 8 as next digit of the result. 
Result so far: 143636.8
If we take 2224 away from 2410, we end up with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Moving on to step 10:
1860 divided by 278 is 6 with a remainder of 192.
The next digit of our result is 6. 
Result so far: 143636.86
Subtracting 1668 from 1860 leaves us with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 11:
278 can be fit into 1920 6 times, resulting in a remainder of 252.
The number 6 becomes the next digit in our result. 
Result so far: 143636.866
Subtracting 1668 from 1920 leaves us with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

The final result is 143636.866 with a remainder of 0.0252.