We divide 80045814 by 810
We want to divide 80045814 by 810.

Advancing to step 1:
8 divided by 810 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 810

Advancing to step 2:
The number 810 fits into 80 0 times, leaving a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 80 after subtracting 0 from 80.
Bring next digit (0) of the dividend behind the 80 and repeat the process: 800 / 810

Moving on to step 3:
800 divided by 810 is 0 with a remainder of 800.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 800 after subtracting 0 from 800.
Bring next digit (4) of the dividend behind the 800 and repeat the process: 8004 / 810

Moving on to step 4:
810 can be fit into 8004 9 times, resulting in a remainder of 714.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 714 after subtracting 7290 from 8004.
Bring next digit (5) of the dividend behind the 714 and repeat the process: 7145 / 810

Going ahead to step 5:
810 can be fit into 7145 8 times, resulting in a remainder of 665.
Put 8 as the next digit of the answer. 
Result so far: 98.0
If we subtract 6480 from 7145, we get 665.
Grab the next digit (8) from the dividend, add it to 665, then carry on: 6658 / 810

Going ahead to step 6:
If we divide 6658 by 810, we get 8 and a remainder of 178.
The next digit of our result is 8. 
Result so far: 988.0
Deduct 6480 from 6658 and we're left with 178.
Take the next digit (1) from the dividend and append it to 178, then repeat: 1781 / 810

On to step 7:
The number 810 fits into 1781 2 times, leaving a remainder of 161.
The next digit of our result is 2. 
Result so far: 9882.0
Deduct 1620 from 1781 and we're left with 161.
Fetch the next digit (4) from the dividend, attach it to 161 and continue: 1614 / 810

Going ahead to step 8:
1614 divided by 810 is 1 with a remainder of 804.
Put 1 as the next digit of the answer. 
Result so far: 98821.0
Subtract 810 from 1614 to get 804.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8040, and continue the process.

Step 9:
The number 810 fits into 8040 9 times, leaving a remainder of 750.
Write down 9 as next digit of the result. 
Result so far: 98821.9
If we subtract 7290 from 8040, we get 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7500, and continue the process.

Going ahead to step 10:
If we divide 7500 by 810, we get 9 and a remainder of 210.
Use 9 as the next digit of our solution. 
Result so far: 98821.99
If we take 7290 away from 7500, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

The final result is 98821.99 with a remainder of 0.21.