804609 ÷ 90 
We want to divide 804609 by 90.

Advancing to step 1:
8 divided by 90 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 90

Let's proceed to step 2:
90 goes into 80 0 times with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Bring next digit (4) of the dividend behind the 80 and repeat the process: 804 / 90

On to step 3:
If we divide 804 by 90, we get 8 and a remainder of 84.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 720 away from 804, we end up with 84.
Bring next digit (6) of the dividend behind the 84 and repeat the process: 846 / 90

Moving on to step 4:
When dividing 846 by 90, we get 9 with a remainder of 36.
Use 9 as the next digit of our solution. 
Result so far: 89.0
If we subtract 810 from 846, we get 36.
Fetch the next digit (0) from the dividend, attach it to 36 and continue: 360 / 90

Advancing to step 5:
360 divided by 90 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 894.0
Subtracting 360 from 360 leaves us with 0.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 90

On to step 6:
90 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 8940.0
Subtract 0 from 9 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 7:
The number 90 fits into 90 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 8940.1
If we subtract 90 from 90, 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.

Advancing to step 8:
90 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8940.1
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.

Let's proceed to step 9:
When dividing 0 by 90, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8940.1
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.

Our division results in 8940.1 with a remaining 0.0.