Let's divide 81145964 by 997
We want to figure out the number of times 81145964 can be divided by 997.

On to step 1:
997 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 997

Moving on to step 2:
997 goes into 81 0 times with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Include the next digit (1) from the dividend after 81, then repeat: 811 / 997

Let's proceed to step 3:
997 can be fit into 811 0 times, resulting in a remainder of 811.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 811, we get 811.
Include the next digit (4) from the dividend after 811, then repeat: 8114 / 997

On to step 4:
997 goes into 8114 8 times with a remainder of 138.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 7976 from 8114, we get 138.
Include the next digit (5) from the dividend after 138, then repeat: 1385 / 997

Going ahead to step 5:
When dividing 1385 by 997, we get 1 with a remainder of 388.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
Subtract 997 from 1385 to get 388.
Take the next digit (9) from the dividend and append it to 388, then repeat: 3889 / 997

Going ahead to step 6:
997 can be fit into 3889 3 times, resulting in a remainder of 898.
The number 3 becomes the next digit in our result. 
Result so far: 813.0
Subtract 2991 from 3889 to get 898.
Bring next digit (6) of the dividend behind the 898 and repeat the process: 8986 / 997

Let's proceed to step 7:
If we divide 8986 by 997, we get 9 and a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 8139.0
If we take 8973 away from 8986, we end up with 13.
Include the next digit (4) from the dividend after 13, then repeat: 134 / 997

Step 8:
The number 997 fits into 134 0 times, leaving a remainder of 134.
Use 0 as the next digit of our solution. 
Result so far: 81390.0
Subtract 0 from 134 to get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Step 9:
997 can be fit into 1340 1 times, resulting in a remainder of 343.
Use 1 as the next digit of our solution. 
Result so far: 81390.1
Subtracting 997 from 1340 leaves us with 343.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3430, and continue the process.

On to step 10:
997 goes into 3430 3 times with a remainder of 439.
The next digit of our result is 3. 
Result so far: 81390.13
Subtract 2991 from 3430 to get 439.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Step 11:
If we divide 4390 by 997, we get 4 and a remainder of 402.
Use 4 as the next digit of our solution. 
Result so far: 81390.134
The remainder is 402 after subtracting 3988 from 4390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

On to step 12:
997 can be fit into 4020 4 times, resulting in a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 81390.1344
Subtracting 3988 from 4020 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 81390.1344, and the remainder is 0.00032.