81998606 divided by 664 
Our goal is to divide 81998606 by 664.

Moving on to step 1:
If we divide 8 by 664, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 664

Advancing to step 2:
The number 664 fits into 81 0 times, leaving a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Take the next digit (9) from the dividend and append it to 81, then repeat: 819 / 664

Advancing to step 3:
664 goes into 819 1 times with a remainder of 155.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 664 from 819 to get 155.
Append the next digit (9) from the dividend to 155 and continue with: 1559 / 664

On to step 4:
664 can be fit into 1559 2 times, resulting in a remainder of 231.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 231 after subtracting 1328 from 1559.
Bring next digit (8) of the dividend behind the 231 and repeat the process: 2318 / 664

Going ahead to step 5:
664 can be fit into 2318 3 times, resulting in a remainder of 326.
The number 3 becomes the next digit in our result. 
Result so far: 123.0
Subtracting 1992 from 2318 leaves us with 326.
Fetch the next digit (6) from the dividend, attach it to 326 and continue: 3266 / 664

Step 6:
664 goes into 3266 4 times with a remainder of 610.
Record the quotient 4 as the next digit in the result. 
Result so far: 1234.0
Subtracting 2656 from 3266 leaves us with 610.
Fetch the next digit (0) from the dividend, attach it to 610 and continue: 6100 / 664

Going ahead to step 7:
664 can be fit into 6100 9 times, resulting in a remainder of 124.
Record the quotient 9 as the next digit in the result. 
Result so far: 12349.0
If we subtract 5976 from 6100, we get 124.
Append the next digit (6) from the dividend to 124 and continue with: 1246 / 664

On to step 8:
664 can be fit into 1246 1 times, resulting in a remainder of 582.
Use 1 as the next digit of our solution. 
Result so far: 123491.0
Subtracting 664 from 1246 leaves us with 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

On to step 9:
If we divide 5820 by 664, we get 8 and a remainder of 508.
Write down 8 as next digit of the result. 
Result so far: 123491.8
The remainder is 508 after subtracting 5312 from 5820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

On to step 10:
If we divide 5080 by 664, we get 7 and a remainder of 432.
Write down 7 as next digit of the result. 
Result so far: 123491.87
If we subtract 4648 from 5080, we get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Going ahead to step 11:
4320 divided by 664 is 6 with a remainder of 336.
Use 6 as the next digit of our solution. 
Result so far: 123491.876
Subtract 3984 from 4320 to get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Step 12:
The number 664 fits into 3360 5 times, leaving a remainder of 40.
The next digit of our result is 5. 
Result so far: 123491.8765
Subtract 3320 from 3360 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
When dividing 400 by 664, we get 0 with a remainder of 400.
Use 0 as the next digit of our solution. 
Result so far: 123491.8765
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 14:
When dividing 4000 by 664, we get 6 with a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 123491.876506
Subtracting 3984 from 4000 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 15:
The number 664 fits into 160 0 times, leaving a remainder of 160.
The next digit of our result is 0. 
Result so far: 123491.876506
Subtracting 0 from 160 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 16:
1600 divided by 664 is 2 with a remainder of 272.
Write down 2 as next digit of the result. 
Result so far: 123491.87650602
Subtracting 1328 from 1600 leaves us with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Our division results in 123491.87650602 with a remaining 2.72e-07.