We're dividing 81680439 by 997 
We want to figure out the number of times 81680439 can be divided by 997.

On to step 1:
997 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
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 997

Going ahead to step 2:
If we divide 81 by 997, we get 0 and a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Fetch the next digit (6) from the dividend, attach it to 81 and continue: 816 / 997

Advancing to step 3:
997 goes into 816 0 times with a remainder of 816.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 816, we end up with 816.
Take the next digit (8) from the dividend and append it to 816, then repeat: 8168 / 997

Going ahead to step 4:
The number 997 fits into 8168 8 times, leaving a remainder of 192.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 7976 from 8168 to get 192.
Append the next digit (0) from the dividend to 192 and continue with: 1920 / 997

On to step 5:
997 can be fit into 1920 1 times, resulting in a remainder of 923.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
If we take 997 away from 1920, we end up with 923.
Bring next digit (4) of the dividend behind the 923 and repeat the process: 9234 / 997

Moving on to step 6:
997 goes into 9234 9 times with a remainder of 261.
Record the quotient 9 as the next digit in the result. 
Result so far: 819.0
If we take 8973 away from 9234, we end up with 261.
Grab the next digit (3) from the dividend, add it to 261, then carry on: 2613 / 997

Going ahead to step 7:
When dividing 2613 by 997, we get 2 with a remainder of 619.
Put 2 as the next digit of the answer. 
Result so far: 8192.0
If we take 1994 away from 2613, we end up with 619.
Take the next digit (9) from the dividend and append it to 619, then repeat: 6199 / 997

Going ahead to step 8:
997 can be fit into 6199 6 times, resulting in a remainder of 217.
Put 6 as the next digit of the answer. 
Result so far: 81926.0
Subtract 5982 from 6199 to get 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Moving on to step 9:
The number 997 fits into 2170 2 times, leaving a remainder of 176.
Record the quotient 2 as the next digit in the result. 
Result so far: 81926.2
Subtracting 1994 from 2170 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Advancing to step 10:
997 goes into 1760 1 times with a remainder of 763.
The next digit of our result is 1. 
Result so far: 81926.21
Subtract 997 from 1760 to get 763.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7630, and continue the process.

Going ahead to step 11:
When dividing 7630 by 997, we get 7 with a remainder of 651.
The next digit of our result is 7. 
Result so far: 81926.217
If we take 6979 away from 7630, we end up with 651.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6510, and continue the process.

Going ahead to step 12:
When dividing 6510 by 997, we get 6 with a remainder of 528.
Use 6 as the next digit of our solution. 
Result so far: 81926.2176
The remainder is 528 after subtracting 5982 from 6510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

On to step 13:
If we divide 5280 by 997, we get 5 and a remainder of 295.
Put 5 as the next digit of the answer. 
Result so far: 81926.21765
Deduct 4985 from 5280 and we're left with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Going ahead to step 14:
If we divide 2950 by 997, we get 2 and a remainder of 956.
Put 2 as the next digit of the answer. 
Result so far: 81926.217652
Deduct 1994 from 2950 and we're left with 956.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9560, and continue the process.

Going ahead to step 15:
When dividing 9560 by 997, we get 9 with a remainder of 587.
Record the quotient 9 as the next digit in the result. 
Result so far: 81926.2176529
If we take 8973 away from 9560, we end up with 587.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

Step 16:
If we divide 5870 by 997, we get 5 and a remainder of 885.
The next digit of our result is 5. 
Result so far: 81926.21765295
If we take 4985 away from 5870, we end up with 885.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8850, and continue the process.

Our division results in 81926.21765295 with a remaining 8.85e-07.