We divide 81002019 by 260
We want to figure out the number of times 81002019 can be divided by 260.

Going ahead to step 1:
260 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 260

Let's proceed to step 2:
260 can be fit into 81 0 times, resulting in a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 260

Moving on to step 3:
260 can be fit into 810 3 times, resulting in a remainder of 30.
The next digit of our result is 3. 
Result so far: 3.0
If we take 780 away from 810, we end up with 30.
Include the next digit (0) from the dividend after 30, then repeat: 300 / 260

Step 4:
260 goes into 300 1 times with a remainder of 40.
Write down 1 as next digit of the result. 
Result so far: 31.0
The remainder is 40 after subtracting 260 from 300.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 260

Moving on to step 5:
The number 260 fits into 402 1 times, leaving a remainder of 142.
Write down 1 as next digit of the result. 
Result so far: 311.0
Deduct 260 from 402 and we're left with 142.
Include the next digit (0) from the dividend after 142, then repeat: 1420 / 260

Advancing to step 6:
When dividing 1420 by 260, we get 5 with a remainder of 120.
Record the quotient 5 as the next digit in the result. 
Result so far: 3115.0
The remainder is 120 after subtracting 1300 from 1420.
Bring next digit (1) of the dividend behind the 120 and repeat the process: 1201 / 260

On to step 7:
1201 divided by 260 is 4 with a remainder of 161.
The number 4 becomes the next digit in our result. 
Result so far: 31154.0
Subtracting 1040 from 1201 leaves us with 161.
Grab the next digit (9) from the dividend, add it to 161, then carry on: 1619 / 260

Let's proceed to step 8:
If we divide 1619 by 260, we get 6 and a remainder of 59.
The number 6 becomes the next digit in our result. 
Result so far: 311546.0
The remainder is 59 after subtracting 1560 from 1619.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Going ahead to step 9:
If we divide 590 by 260, we get 2 and a remainder of 70.
Write down 2 as next digit of the result. 
Result so far: 311546.2
Subtracting 520 from 590 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 10:
700 divided by 260 is 2 with a remainder of 180.
The next digit of our result is 2. 
Result so far: 311546.22
Subtract 520 from 700 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

The final result is 311546.22 with a remainder of 0.18.