85278680 ÷ 990 
We're looking to find how many times 990 goes into 85278680.

On to step 1:
990 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 990

Let's proceed to step 2:
If we divide 85 by 990, we get 0 and a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 85, we get 85.
Take the next digit (2) from the dividend and append it to 85, then repeat: 852 / 990

Going ahead to step 3:
852 divided by 990 is 0 with a remainder of 852.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 852, we end up with 852.
Include the next digit (7) from the dividend after 852, then repeat: 8527 / 990

Advancing to step 4:
8527 divided by 990 is 8 with a remainder of 607.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 7920 from 8527, we get 607.
Take the next digit (8) from the dividend and append it to 607, then repeat: 6078 / 990

Advancing to step 5:
The number 990 fits into 6078 6 times, leaving a remainder of 138.
Use 6 as the next digit of our solution. 
Result so far: 86.0
If we take 5940 away from 6078, we end up with 138.
Include the next digit (6) from the dividend after 138, then repeat: 1386 / 990

On to step 6:
The number 990 fits into 1386 1 times, leaving a remainder of 396.
Use 1 as the next digit of our solution. 
Result so far: 861.0
Subtracting 990 from 1386 leaves us with 396.
Bring next digit (8) of the dividend behind the 396 and repeat the process: 3968 / 990

Going ahead to step 7:
When dividing 3968 by 990, we get 4 with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 8614.0
The remainder is 8 after subtracting 3960 from 3968.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 990

On to step 8:
When dividing 80 by 990, we get 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 86140.0
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 9:
990 goes into 800 0 times with a remainder of 800.
Record the quotient 0 as the next digit in the result. 
Result so far: 86140.0
If we subtract 0 from 800, we get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Step 10:
When dividing 8000 by 990, we get 8 with a remainder of 80.
Write down 8 as next digit of the result. 
Result so far: 86140.08
If we take 7920 away from 8000, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 11:
990 goes into 800 0 times with a remainder of 800.
Put 0 as the next digit of the answer. 
Result so far: 86140.08
Deduct 0 from 800 and we're left with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

On to step 12:
When dividing 8000 by 990, we get 8 with a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 86140.0808
The remainder is 80 after subtracting 7920 from 8000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 13:
800 divided by 990 is 0 with a remainder of 800.
The next digit of our result is 0. 
Result so far: 86140.0808
Subtracting 0 from 800 leaves us with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

On to step 14:
990 goes into 8000 8 times with a remainder of 80.
The number 8 becomes the next digit in our result. 
Result so far: 86140.080808
If we subtract 7920 from 8000, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 15:
990 goes into 800 0 times with a remainder of 800.
Put 0 as the next digit of the answer. 
Result so far: 86140.080808
If we take 0 away from 800, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Let's proceed to step 16:
990 can be fit into 8000 8 times, resulting in a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 86140.08080808
Subtract 7920 from 8000 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

After the division, we end up with 86140.08080808 and a remainder of 8e-08.