855783 ÷ 2 
We're looking to find how many times 2 goes into 855783.

Step 1:
When dividing 8 by 2, we get 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 8 from 8, we get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 2

Advancing to step 2:
When dividing 5 by 2, we get 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Subtract 4 from 5 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 2

Moving on to step 3:
If we divide 15 by 2, we get 7 and a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 427.0
If we subtract 14 from 15, we get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 2

Going ahead to step 4:
2 can be fit into 17 8 times, resulting in a remainder of 1.
Record the quotient 8 as the next digit in the result. 
Result so far: 4278.0
If we take 16 away from 17, we end up with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 2

Advancing to step 5:
18 divided by 2 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 42789.0
If we subtract 18 from 18, we get 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 2

Moving on to step 6:
The number 2 fits into 3 1 times, leaving a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 427891.0
The remainder is 1 after subtracting 2 from 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 7:
When dividing 10 by 2, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 427891.5
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.

Let's proceed to step 8:
2 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 427891.5
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.

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: 427891.5
If we subtract 0 from 0, we 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 quotient of the division is 427891.5, and the remainder is 0.0.