We're dividing 81987649 by 409 
We want to divide 81987649 by 409.

Advancing to step 1:
409 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 409

Step 2:
When dividing 81 by 409, we get 0 with a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 81, we get 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 409

Advancing to step 3:
If we divide 819 by 409, we get 2 and a remainder of 1.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we subtract 818 from 819, we get 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 409

Let's proceed to step 4:
If we divide 18 by 409, we get 0 and a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 20.0
The remainder is 18 after subtracting 0 from 18.
Append the next digit (7) from the dividend to 18 and continue with: 187 / 409

Let's proceed to step 5:
187 divided by 409 is 0 with a remainder of 187.
Record the quotient 0 as the next digit in the result. 
Result so far: 200.0
The remainder is 187 after subtracting 0 from 187.
Take the next digit (6) from the dividend and append it to 187, then repeat: 1876 / 409

Let's proceed to step 6:
When dividing 1876 by 409, we get 4 with a remainder of 240.
The number 4 becomes the next digit in our result. 
Result so far: 2004.0
Deduct 1636 from 1876 and we're left with 240.
Bring next digit (4) of the dividend behind the 240 and repeat the process: 2404 / 409

On to step 7:
When dividing 2404 by 409, we get 5 with a remainder of 359.
Write down 5 as next digit of the result. 
Result so far: 20045.0
Subtracting 2045 from 2404 leaves us with 359.
Include the next digit (9) from the dividend after 359, then repeat: 3599 / 409

On to step 8:
3599 divided by 409 is 8 with a remainder of 327.
Use 8 as the next digit of our solution. 
Result so far: 200458.0
If we take 3272 away from 3599, we end up with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

Going ahead to step 9:
409 can be fit into 3270 7 times, resulting in a remainder of 407.
Use 7 as the next digit of our solution. 
Result so far: 200458.7
If we subtract 2863 from 3270, we get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

On to step 10:
409 can be fit into 4070 9 times, resulting in a remainder of 389.
Use 9 as the next digit of our solution. 
Result so far: 200458.79
Subtracting 3681 from 4070 leaves us with 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Going ahead to step 11:
The number 409 fits into 3890 9 times, leaving a remainder of 209.
Write down 9 as next digit of the result. 
Result so far: 200458.799
Subtracting 3681 from 3890 leaves us with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

The final result is 200458.799 with a remainder of 0.0209.