903089 ÷ 2 
Our goal is to divide 903089 by 2.

Advancing to step 1:
9 divided by 2 is 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 1 after subtracting 8 from 9.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 2

Step 2:
If we divide 10 by 2, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we subtract 10 from 10, we get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 2

Advancing to step 3:
When dividing 3 by 2, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 451.0
Deduct 2 from 3 and we're left with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 2

Advancing to step 4:
2 goes into 10 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 4515.0
Subtract 10 from 10 to get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 2

Let's proceed to step 5:
2 goes into 8 4 times with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 45154.0
If we subtract 8 from 8, we get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 2

Step 6:
If we divide 9 by 2, we get 4 and a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 451544.0
The remainder is 1 after subtracting 8 from 9.
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.
The next digit of our result is 5. 
Result so far: 451544.5
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.

Advancing to step 8:
If we divide 0 by 2, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 451544.5
The remainder is 0 after subtracting 0 from 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 9:
2 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 451544.5
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 final outcome is 451544.5, with a leftover of 0.0.