904591 ÷ 2 
We want to figure out the number of times 904591 can be divided by 2.

Moving on to step 1:
2 goes into 9 4 times with a remainder of 1.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we subtract 8 from 9, we get 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 2

On to step 2:
2 goes into 10 5 times with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 45.0
Subtract 10 from 10 to get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 2

Let's proceed to step 3:
If we divide 4 by 2, we get 2 and a remainder of 0.
The next digit of our result is 2. 
Result so far: 452.0
Deduct 4 from 4 and we're left with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 2

Going ahead to step 4:
2 can be fit into 5 2 times, resulting in a remainder of 1.
The next digit of our result is 2. 
Result so far: 4522.0
If we take 4 away from 5, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 2

Going ahead to step 5:
If we divide 19 by 2, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 45229.0
Subtract 18 from 19 to get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 2

On to step 6:
11 divided by 2 is 5 with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 452295.0
If we subtract 10 from 11, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
2 can be fit into 10 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 452295.5
Subtract 10 from 10 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.

On to step 8:
When dividing 0 by 2, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 452295.5
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.

Going ahead to step 9:
2 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 452295.5
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.

Our division results in 452295.5 with a remaining 0.0.