We're dividing 81660961 by 102 
We want to figure out the number of times 81660961 can be divided by 102.

On to step 1:
102 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 102

Moving on to step 2:
102 goes into 81 0 times with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (6) from the dividend, add it to 81, then carry on: 816 / 102

Step 3:
If we divide 816 by 102, we get 8 and a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 816 from 816, we get 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 102

Step 4:
6 divided by 102 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 80.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (0) from the dividend and append it to 6, then repeat: 60 / 102

Moving on to step 5:
The number 102 fits into 60 0 times, leaving a remainder of 60.
The next digit of our result is 0. 
Result so far: 800.0
Deduct 0 from 60 and we're left with 60.
Include the next digit (9) from the dividend after 60, then repeat: 609 / 102

Going ahead to step 6:
102 can be fit into 609 5 times, resulting in a remainder of 99.
Record the quotient 5 as the next digit in the result. 
Result so far: 8005.0
Subtract 510 from 609 to get 99.
Take the next digit (6) from the dividend and append it to 99, then repeat: 996 / 102

Going ahead to step 7:
996 divided by 102 is 9 with a remainder of 78.
The next digit of our result is 9. 
Result so far: 80059.0
Subtracting 918 from 996 leaves us with 78.
Append the next digit (1) from the dividend to 78 and continue with: 781 / 102

Let's proceed to step 8:
The number 102 fits into 781 7 times, leaving a remainder of 67.
The next digit of our result is 7. 
Result so far: 800597.0
If we subtract 714 from 781, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 9:
102 goes into 670 6 times with a remainder of 58.
Put 6 as the next digit of the answer. 
Result so far: 800597.6
Subtract 612 from 670 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 10:
580 divided by 102 is 5 with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 800597.65
Subtract 510 from 580 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 11:
102 can be fit into 700 6 times, resulting in a remainder of 88.
Use 6 as the next digit of our solution. 
Result so far: 800597.656
If we subtract 612 from 700, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

On to step 12:
102 goes into 880 8 times with a remainder of 64.
Put 8 as the next digit of the answer. 
Result so far: 800597.6568
If we take 816 away from 880, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 13:
102 goes into 640 6 times with a remainder of 28.
The next digit of our result is 6. 
Result so far: 800597.65686
Subtracting 612 from 640 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 14:
When dividing 280 by 102, we get 2 with a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 800597.656862
The remainder is 76 after subtracting 204 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 15:
102 goes into 760 7 times with a remainder of 46.
The number 7 becomes the next digit in our result. 
Result so far: 800597.6568627
Subtracting 714 from 760 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 16:
460 divided by 102 is 4 with a remainder of 52.
Put 4 as the next digit of the answer. 
Result so far: 800597.65686274
Deduct 408 from 460 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 800597.65686274 and a remainder of 5.2e-08.