We look at the division of 855557 by 2 
Our goal is to divide 855557 by 2.

Step 1:
2 can be fit into 8 4 times, resulting in a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 8 from 8 and we're left with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 2

Going ahead to step 2:
2 goes into 5 2 times with a remainder of 1.
The next digit of our result is 2. 
Result so far: 42.0
Subtracting 4 from 5 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 2

Moving on to step 3:
2 goes into 15 7 times with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 427.0
Subtracting 14 from 15 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 2

Step 4:
2 goes into 15 7 times with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 4277.0
Deduct 14 from 15 and we're left with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 2

Step 5:
The number 2 fits into 15 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 42777.0
Subtracting 14 from 15 leaves us with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 2

Advancing to step 6:
2 goes into 17 8 times with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 427778.0
Subtracting 16 from 17 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: 427778.5
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 8:
The number 2 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 427778.5
Subtracting 0 from 0 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.

On to step 9:
2 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 427778.5
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.

The final outcome is 427778.5, with a leftover of 0.0.