80771052 ÷ 991 
We're looking to find how many times 991 goes into 80771052.

Moving on to step 1:
991 goes into 8 0 times 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.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 991

Step 2:
991 can be fit into 80 0 times, resulting in a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Bring next digit (7) of the dividend behind the 80 and repeat the process: 807 / 991

Moving on to step 3:
991 goes into 807 0 times with a remainder of 807.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 807 to get 807.
Bring next digit (7) of the dividend behind the 807 and repeat the process: 8077 / 991

Let's proceed to step 4:
991 can be fit into 8077 8 times, resulting in a remainder of 149.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 7928 from 8077, we get 149.
Include the next digit (1) from the dividend after 149, then repeat: 1491 / 991

Let's proceed to step 5:
When dividing 1491 by 991, we get 1 with a remainder of 500.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
If we subtract 991 from 1491, we get 500.
Fetch the next digit (0) from the dividend, attach it to 500 and continue: 5000 / 991

Step 6:
991 can be fit into 5000 5 times, resulting in a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 815.0
If we take 4955 away from 5000, we end up with 45.
Bring next digit (5) of the dividend behind the 45 and repeat the process: 455 / 991

Step 7:
If we divide 455 by 991, we get 0 and a remainder of 455.
Write down 0 as next digit of the result. 
Result so far: 8150.0
The remainder is 455 after subtracting 0 from 455.
Include the next digit (2) from the dividend after 455, then repeat: 4552 / 991

Moving on to step 8:
The number 991 fits into 4552 4 times, leaving a remainder of 588.
Put 4 as the next digit of the answer. 
Result so far: 81504.0
Subtracting 3964 from 4552 leaves us with 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Step 9:
5880 divided by 991 is 5 with a remainder of 925.
Use 5 as the next digit of our solution. 
Result so far: 81504.5
Deduct 4955 from 5880 and we're left with 925.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9250, and continue the process.

Let's proceed to step 10:
The number 991 fits into 9250 9 times, leaving a remainder of 331.
Record the quotient 9 as the next digit in the result. 
Result so far: 81504.59
If we subtract 8919 from 9250, we get 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

Step 11:
991 goes into 3310 3 times with a remainder of 337.
Record the quotient 3 as the next digit in the result. 
Result so far: 81504.593
Deduct 2973 from 3310 and we're left with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Let's proceed to step 12:
The number 991 fits into 3370 3 times, leaving a remainder of 397.
The next digit of our result is 3. 
Result so far: 81504.5933
Subtract 2973 from 3370 to get 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

The final result is 81504.5933 with a remainder of 0.00397.