81897696 divided by 664 
We're looking to find how many times 664 goes into 81897696.

Step 1:
When dividing 8 by 664, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 664

Advancing to step 2:
When dividing 81 by 664, we get 0 with a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 664

On to step 3:
The number 664 fits into 818 1 times, leaving a remainder of 154.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 664 from 818, we get 154.
Bring next digit (9) of the dividend behind the 154 and repeat the process: 1549 / 664

Moving on to step 4:
If we divide 1549 by 664, we get 2 and a remainder of 221.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we subtract 1328 from 1549, we get 221.
Fetch the next digit (7) from the dividend, attach it to 221 and continue: 2217 / 664

Moving on to step 5:
If we divide 2217 by 664, we get 3 and a remainder of 225.
Use 3 as the next digit of our solution. 
Result so far: 123.0
Subtracting 1992 from 2217 leaves us with 225.
Fetch the next digit (6) from the dividend, attach it to 225 and continue: 2256 / 664

On to step 6:
When dividing 2256 by 664, we get 3 with a remainder of 264.
The number 3 becomes the next digit in our result. 
Result so far: 1233.0
Subtract 1992 from 2256 to get 264.
Include the next digit (9) from the dividend after 264, then repeat: 2649 / 664

Advancing to step 7:
664 goes into 2649 3 times with a remainder of 657.
Use 3 as the next digit of our solution. 
Result so far: 12333.0
Subtracting 1992 from 2649 leaves us with 657.
Include the next digit (6) from the dividend after 657, then repeat: 6576 / 664

Let's proceed to step 8:
When dividing 6576 by 664, we get 9 with a remainder of 600.
Put 9 as the next digit of the answer. 
Result so far: 123339.0
Subtract 5976 from 6576 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 9:
The number 664 fits into 6000 9 times, leaving a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 123339.9
Deduct 5976 from 6000 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
664 can be fit into 240 0 times, resulting in a remainder of 240.
The next digit of our result is 0. 
Result so far: 123339.9
Subtract 0 from 240 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 11:
If we divide 2400 by 664, we get 3 and a remainder of 408.
The next digit of our result is 3. 
Result so far: 123339.903
If we take 1992 away from 2400, we end up with 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Going ahead to step 12:
If we divide 4080 by 664, we get 6 and a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 123339.9036
If we take 3984 away from 4080, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Going ahead to step 13:
When dividing 960 by 664, we get 1 with a remainder of 296.
The number 1 becomes the next digit in our result. 
Result so far: 123339.90361
The remainder is 296 after subtracting 664 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 14:
664 goes into 2960 4 times with a remainder of 304.
The next digit of our result is 4. 
Result so far: 123339.903614
The remainder is 304 after subtracting 2656 from 2960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Moving on to step 15:
664 can be fit into 3040 4 times, resulting in a remainder of 384.
The next digit of our result is 4. 
Result so far: 123339.9036144
Deduct 2656 from 3040 and we're left with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Our division results in 123339.9036144 with a remaining 3.84e-06.