Let's divide 905909 by 80
We want to divide 905909 by 80.

Let's proceed to step 1:
The number 80 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 80

Moving on to step 2:
The number 80 fits into 90 1 times, leaving a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 80 from 90, we get 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 80

On to step 3:
If we divide 105 by 80, we get 1 and a remainder of 25.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 80 from 105 leaves us with 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 80

Going ahead to step 4:
If we divide 259 by 80, we get 3 and a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 113.0
If we take 240 away from 259, we end up with 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 80

On to step 5:
If we divide 190 by 80, we get 2 and a remainder of 30.
Use 2 as the next digit of our solution. 
Result so far: 1132.0
Subtract 160 from 190 to get 30.
Grab the next digit (9) from the dividend, add it to 30, then carry on: 309 / 80

Going ahead to step 6:
When dividing 309 by 80, we get 3 with a remainder of 69.
The next digit of our result is 3. 
Result so far: 11323.0
The remainder is 69 after subtracting 240 from 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 7:
80 can be fit into 690 8 times, resulting in a remainder of 50.
Put 8 as the next digit of the answer. 
Result so far: 11323.8
If we subtract 640 from 690, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
500 divided by 80 is 6 with a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 11323.86
If we subtract 480 from 500, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
When dividing 200 by 80, we get 2 with a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 11323.862
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 10:
80 can be fit into 400 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 11323.8625
The remainder is 0 after subtracting 400 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
When dividing 0 by 80, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11323.8625
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.

Step 12:
If we divide 0 by 80, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11323.8625
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.

In conclusion, the division gives 11323.8625 with a balance of 0.0.