873863 divided by 2 
We want to divide 873863 by 2.

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.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 2

Advancing to step 2:
7 divided by 2 is 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Subtracting 6 from 7 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 2

Going ahead to step 3:
If we divide 13 by 2, we get 6 and a remainder of 1.
Record the quotient 6 as the next digit in the result. 
Result so far: 436.0
Subtracting 12 from 13 leaves us with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 2

Let's proceed to step 4:
18 divided by 2 is 9 with a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 4369.0
Subtract 18 from 18 to get 0.
Take the next digit (6) from the dividend and append it to 0, then repeat: 6 / 2

Let's proceed to step 5:
2 goes into 6 3 times with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 43693.0
If we subtract 6 from 6, we get 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 2

Step 6:
When dividing 3 by 2, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 436931.0
If we take 2 away from 3, we end up 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:
If we divide 10 by 2, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 436931.5
If we subtract 10 from 10, 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.

Going ahead to step 8:
2 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 436931.5
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.

Advancing to step 9:
0 divided by 2 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 436931.5
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.

After the division, we end up with 436931.5 and a remainder of 0.0.