We look at the division of 81407959 by 993 
We're looking to find how many times 993 goes into 81407959.

Advancing to step 1:
The number 993 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 993

Let's proceed to step 2:
81 divided by 993 is 0 with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Take the next digit (4) from the dividend and append it to 81, then repeat: 814 / 993

On to step 3:
993 can be fit into 814 0 times, resulting in a remainder of 814.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 814 leaves us with 814.
Grab the next digit (0) from the dividend, add it to 814, then carry on: 8140 / 993

Advancing to step 4:
If we divide 8140 by 993, we get 8 and a remainder of 196.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 196 after subtracting 7944 from 8140.
Fetch the next digit (7) from the dividend, attach it to 196 and continue: 1967 / 993

Step 5:
The number 993 fits into 1967 1 times, leaving a remainder of 974.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
Subtracting 993 from 1967 leaves us with 974.
Fetch the next digit (9) from the dividend, attach it to 974 and continue: 9749 / 993

On to step 6:
If we divide 9749 by 993, we get 9 and a remainder of 812.
Write down 9 as next digit of the result. 
Result so far: 819.0
If we take 8937 away from 9749, we end up with 812.
Include the next digit (5) from the dividend after 812, then repeat: 8125 / 993

On to step 7:
If we divide 8125 by 993, we get 8 and a remainder of 181.
Use 8 as the next digit of our solution. 
Result so far: 8198.0
Subtracting 7944 from 8125 leaves us with 181.
Grab the next digit (9) from the dividend, add it to 181, then carry on: 1819 / 993

Advancing to step 8:
If we divide 1819 by 993, we get 1 and a remainder of 826.
Write down 1 as next digit of the result. 
Result so far: 81981.0
Subtracting 993 from 1819 leaves us with 826.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8260, and continue the process.

Moving on to step 9:
993 can be fit into 8260 8 times, resulting in a remainder of 316.
Write down 8 as next digit of the result. 
Result so far: 81981.8
Deduct 7944 from 8260 and we're left with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Let's proceed to step 10:
If we divide 3160 by 993, we get 3 and a remainder of 181.
The next digit of our result is 3. 
Result so far: 81981.83
If we subtract 2979 from 3160, we get 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

On to step 11:
If we divide 1810 by 993, we get 1 and a remainder of 817.
The number 1 becomes the next digit in our result. 
Result so far: 81981.831
Deduct 993 from 1810 and we're left with 817.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8170, and continue the process.

Advancing to step 12:
If we divide 8170 by 993, we get 8 and a remainder of 226.
Use 8 as the next digit of our solution. 
Result so far: 81981.8318
Subtracting 7944 from 8170 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 13:
If we divide 2260 by 993, we get 2 and a remainder of 274.
Record the quotient 2 as the next digit in the result. 
Result so far: 81981.83182
The remainder is 274 after subtracting 1986 from 2260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 14:
993 goes into 2740 2 times with a remainder of 754.
The next digit of our result is 2. 
Result so far: 81981.831822
The remainder is 754 after subtracting 1986 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

The final outcome is 81981.831822, with a leftover of 7.54e-05.