80512480 divided by 809 
Our goal is to divide 80512480 by 809.

Let's proceed to step 1:
When dividing 8 by 809, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our 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 / 809

Advancing to step 2:
When dividing 80 by 809, we get 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Append the next digit (5) from the dividend to 80 and continue with: 805 / 809

Moving on to step 3:
The number 809 fits into 805 0 times, leaving a remainder of 805.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 805 leaves us with 805.
Include the next digit (1) from the dividend after 805, then repeat: 8051 / 809

On to step 4:
If we divide 8051 by 809, we get 9 and a remainder of 770.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 7281 away from 8051, we end up with 770.
Append the next digit (2) from the dividend to 770 and continue with: 7702 / 809

On to step 5:
When dividing 7702 by 809, we get 9 with a remainder of 421.
Record the quotient 9 as the next digit in the result. 
Result so far: 99.0
Subtract 7281 from 7702 to get 421.
Fetch the next digit (4) from the dividend, attach it to 421 and continue: 4214 / 809

On to step 6:
When dividing 4214 by 809, we get 5 with a remainder of 169.
The next digit of our result is 5. 
Result so far: 995.0
Subtract 4045 from 4214 to get 169.
Fetch the next digit (8) from the dividend, attach it to 169 and continue: 1698 / 809

Going ahead to step 7:
The number 809 fits into 1698 2 times, leaving a remainder of 80.
Record the quotient 2 as the next digit in the result. 
Result so far: 9952.0
If we take 1618 away from 1698, we end up with 80.
Grab the next digit (0) from the dividend, add it to 80, then carry on: 800 / 809

Advancing to step 8:
809 goes into 800 0 times with a remainder of 800.
The number 0 becomes the next digit in our result. 
Result so far: 99520.0
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Going ahead to step 9:
The number 809 fits into 8000 9 times, leaving a remainder of 719.
Record the quotient 9 as the next digit in the result. 
Result so far: 99520.9
Subtracting 7281 from 8000 leaves us with 719.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7190, and continue the process.

Step 10:
809 can be fit into 7190 8 times, resulting in a remainder of 718.
Record the quotient 8 as the next digit in the result. 
Result so far: 99520.98
Subtracting 6472 from 7190 leaves us with 718.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7180, and continue the process.

Let's proceed to step 11:
The number 809 fits into 7180 8 times, leaving a remainder of 708.
Record the quotient 8 as the next digit in the result. 
Result so far: 99520.988
If we take 6472 away from 7180, we end up with 708.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7080, and continue the process.

The final result is 99520.988 with a remainder of 0.0708.