We divide 278843 by 2
We want to figure out the number of times 278843 can be divided by 2.

Going ahead to step 1:
If we divide 2 by 2, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 2 away from 2, we end up with 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 2

Going ahead to step 2:
If we divide 7 by 2, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 1 after subtracting 6 from 7.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 2

On to step 3:
The number 2 fits into 18 9 times, leaving a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 139.0
Deduct 18 from 18 and we're left with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 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: 1394.0
Subtracting 8 from 8 leaves us with 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Step 5:
4 divided by 2 is 2 with a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 13942.0
Deduct 4 from 4 and we're left with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 2

On to step 6:
3 divided by 2 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 139421.0
Subtracting 2 from 3 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.

On to step 7:
When dividing 10 by 2, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 139421.5
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.

Going ahead to step 8:
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: 139421.5
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.

Going ahead to step 9:
If we divide 0 by 2, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 139421.5
Deduct 0 from 0 and we're left 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.

In conclusion, the division gives 139421.5 with a balance of 0.0.