We divide 81519509 by 873
We want to divide 81519509 by 873.

Moving on to step 1:
873 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 873

Advancing to step 2:
When dividing 81 by 873, we get 0 with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Take the next digit (5) from the dividend and append it to 81, then repeat: 815 / 873

Let's proceed to step 3:
The number 873 fits into 815 0 times, leaving a remainder of 815.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 815, we get 815.
Fetch the next digit (1) from the dividend, attach it to 815 and continue: 8151 / 873

On to step 4:
If we divide 8151 by 873, we get 9 and a remainder of 294.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
The remainder is 294 after subtracting 7857 from 8151.
Bring next digit (9) of the dividend behind the 294 and repeat the process: 2949 / 873

On to step 5:
The number 873 fits into 2949 3 times, leaving a remainder of 330.
The next digit of our result is 3. 
Result so far: 93.0
Subtracting 2619 from 2949 leaves us with 330.
Bring next digit (5) of the dividend behind the 330 and repeat the process: 3305 / 873

Advancing to step 6:
The number 873 fits into 3305 3 times, leaving a remainder of 686.
Record the quotient 3 as the next digit in the result. 
Result so far: 933.0
The remainder is 686 after subtracting 2619 from 3305.
Take the next digit (0) from the dividend and append it to 686, then repeat: 6860 / 873

Moving on to step 7:
873 goes into 6860 7 times with a remainder of 749.
The number 7 becomes the next digit in our result. 
Result so far: 9337.0
The remainder is 749 after subtracting 6111 from 6860.
Fetch the next digit (9) from the dividend, attach it to 749 and continue: 7499 / 873

Let's proceed to step 8:
If we divide 7499 by 873, we get 8 and a remainder of 515.
The next digit of our result is 8. 
Result so far: 93378.0
The remainder is 515 after subtracting 6984 from 7499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Advancing to step 9:
5150 divided by 873 is 5 with a remainder of 785.
Use 5 as the next digit of our solution. 
Result so far: 93378.5
Subtract 4365 from 5150 to get 785.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7850, and continue the process.

Let's proceed to step 10:
873 can be fit into 7850 8 times, resulting in a remainder of 866.
Put 8 as the next digit of the answer. 
Result so far: 93378.58
Subtracting 6984 from 7850 leaves us with 866.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8660, and continue the process.

Let's proceed to step 11:
When dividing 8660 by 873, we get 9 with a remainder of 803.
Write down 9 as next digit of the result. 
Result so far: 93378.589
The remainder is 803 after subtracting 7857 from 8660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8030, and continue the process.

Advancing to step 12:
The number 873 fits into 8030 9 times, leaving a remainder of 173.
Use 9 as the next digit of our solution. 
Result so far: 93378.5899
Subtracting 7857 from 8030 leaves us with 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

The final result is 93378.5899 with a remainder of 0.00173.