839551 ÷ 2 
We want to figure out the number of times 839551 can be divided by 2.

Advancing to step 1:
If we divide 8 by 2, we get 4 and a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 8 away from 8, we end up with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 2

Step 2:
The number 2 fits into 3 1 times, leaving a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 41.0
Subtracting 2 from 3 leaves us with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 2

Let's proceed to step 3:
If we divide 19 by 2, we get 9 and a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 419.0
The remainder is 1 after subtracting 18 from 19.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 2

Going ahead to step 4:
2 goes into 15 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 4197.0
Subtract 14 from 15 to get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 2

Going ahead to step 5:
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: 41977.0
Subtracting 14 from 15 leaves us with 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 2

Step 6:
When dividing 11 by 2, we get 5 with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 419775.0
Deduct 10 from 11 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.

Advancing to step 7:
The number 2 fits into 10 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 419775.5
Subtracting 10 from 10 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.

Step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 419775.5
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.

Going ahead to step 9:
2 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 419775.5
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.

After the division, we end up with 419775.5 and a remainder of 0.0.