80304971 ÷ 866 
We're looking to find how many times 866 goes into 80304971.

Step 1:
8 divided by 866 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 866

Advancing to step 2:
When dividing 80 by 866, we get 0 with a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 866

On to step 3:
When dividing 803 by 866, we get 0 with a remainder of 803.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 803 leaves us with 803.
Append the next digit (0) from the dividend to 803 and continue with: 8030 / 866

Moving on to step 4:
8030 divided by 866 is 9 with a remainder of 236.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 7794 from 8030 and we're left with 236.
Append the next digit (4) from the dividend to 236 and continue with: 2364 / 866

On to step 5:
2364 divided by 866 is 2 with a remainder of 632.
The next digit of our result is 2. 
Result so far: 92.0
If we take 1732 away from 2364, we end up with 632.
Fetch the next digit (9) from the dividend, attach it to 632 and continue: 6329 / 866

Let's proceed to step 6:
866 can be fit into 6329 7 times, resulting in a remainder of 267.
The number 7 becomes the next digit in our result. 
Result so far: 927.0
If we take 6062 away from 6329, we end up with 267.
Take the next digit (7) from the dividend and append it to 267, then repeat: 2677 / 866

Going ahead to step 7:
866 goes into 2677 3 times with a remainder of 79.
The next digit of our result is 3. 
Result so far: 9273.0
The remainder is 79 after subtracting 2598 from 2677.
Bring next digit (1) of the dividend behind the 79 and repeat the process: 791 / 866

On to step 8:
866 goes into 791 0 times with a remainder of 791.
Record the quotient 0 as the next digit in the result. 
Result so far: 92730.0
Subtracting 0 from 791 leaves us with 791.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7910, and continue the process.

Going ahead to step 9:
The number 866 fits into 7910 9 times, leaving a remainder of 116.
Put 9 as the next digit of the answer. 
Result so far: 92730.9
The remainder is 116 after subtracting 7794 from 7910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 10:
When dividing 1160 by 866, we get 1 with a remainder of 294.
The number 1 becomes the next digit in our result. 
Result so far: 92730.91
If we take 866 away from 1160, we end up with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 11:
When dividing 2940 by 866, we get 3 with a remainder of 342.
The next digit of our result is 3. 
Result so far: 92730.913
If we subtract 2598 from 2940, we get 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Advancing to step 12:
If we divide 3420 by 866, we get 3 and a remainder of 822.
The next digit of our result is 3. 
Result so far: 92730.9133
Subtracting 2598 from 3420 leaves us with 822.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8220, and continue the process.

In conclusion, the division gives 92730.9133 with a balance of 0.00822.