990807 ÷ 1 
We want to divide 990807 by 1.

Advancing to step 1:
When dividing 9 by 1, we get 9 with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 9 from 9 and we're left with 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 1

Going ahead to step 2:
1 goes into 9 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 99.0
The remainder is 0 after subtracting 9 from 9.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 1

Let's proceed to step 3:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 990.0
If we take 0 away from 0, we end up with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 1

On to step 4:
1 can be fit into 8 8 times, resulting in a remainder of 0.
The next digit of our result is 8. 
Result so far: 9908.0
If we take 8 away from 8, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 1

On to step 5:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 99080.0
Deduct 0 from 0 and we're left with 0.
Fetch the next digit (7) from the dividend, attach it to 0 and continue: 7 / 1

Advancing to step 6:
If we divide 7 by 1, we get 7 and a remainder of 0.
The next digit of our result is 7. 
Result so far: 990807.0
Subtracting 7 from 7 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.

Step 7:
1 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 990807.0
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.

Advancing to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 990807.0
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.

Our division results in 990807.0 with a remaining 0.0.