80828245 ÷ 312 
Let's see how many times 312 fits into 80828245.

On to step 1:
If we divide 8 by 312, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 312

Advancing to step 2:
The number 312 fits into 80 0 times, leaving a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Fetch the next digit (8) from the dividend, attach it to 80 and continue: 808 / 312

Advancing to step 3:
When dividing 808 by 312, we get 2 with a remainder of 184.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 624 from 808 leaves us with 184.
Append the next digit (2) from the dividend to 184 and continue with: 1842 / 312

Let's proceed to step 4:
312 goes into 1842 5 times with a remainder of 282.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Subtracting 1560 from 1842 leaves us with 282.
Take the next digit (8) from the dividend and append it to 282, then repeat: 2828 / 312

On to step 5:
If we divide 2828 by 312, we get 9 and a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 259.0
If we subtract 2808 from 2828, we get 20.
Bring next digit (2) of the dividend behind the 20 and repeat the process: 202 / 312

Going ahead to step 6:
312 goes into 202 0 times with a remainder of 202.
The number 0 becomes the next digit in our result. 
Result so far: 2590.0
Deduct 0 from 202 and we're left with 202.
Fetch the next digit (4) from the dividend, attach it to 202 and continue: 2024 / 312

Step 7:
If we divide 2024 by 312, we get 6 and a remainder of 152.
The number 6 becomes the next digit in our result. 
Result so far: 25906.0
Subtracting 1872 from 2024 leaves us with 152.
Append the next digit (5) from the dividend to 152 and continue with: 1525 / 312

Moving on to step 8:
When dividing 1525 by 312, we get 4 with a remainder of 277.
The next digit of our result is 4. 
Result so far: 259064.0
Subtracting 1248 from 1525 leaves us with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Moving on to step 9:
The number 312 fits into 2770 8 times, leaving a remainder of 274.
Use 8 as the next digit of our solution. 
Result so far: 259064.8
If we take 2496 away from 2770, we end up with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Going ahead to step 10:
If we divide 2740 by 312, we get 8 and a remainder of 244.
Write down 8 as next digit of the result. 
Result so far: 259064.88
If we take 2496 away from 2740, we end up with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

The final result is 259064.88 with a remainder of 0.244.