We divide 81668909 by 209
We're looking to find how many times 209 goes into 81668909.

Advancing to step 1:
If we divide 8 by 209, we get 0 and 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.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 209

Let's proceed to step 2:
209 can be fit into 81 0 times, resulting in 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.
Include the next digit (6) from the dividend after 81, then repeat: 816 / 209

Going ahead to step 3:
The number 209 fits into 816 3 times, leaving a remainder of 189.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 627 from 816, we get 189.
Append the next digit (6) from the dividend to 189 and continue with: 1896 / 209

Moving on to step 4:
If we divide 1896 by 209, we get 9 and a remainder of 15.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Deduct 1881 from 1896 and we're left with 15.
Grab the next digit (8) from the dividend, add it to 15, then carry on: 158 / 209

On to step 5:
If we divide 158 by 209, we get 0 and a remainder of 158.
Record the quotient 0 as the next digit in the result. 
Result so far: 390.0
If we take 0 away from 158, we end up with 158.
Bring next digit (9) of the dividend behind the 158 and repeat the process: 1589 / 209

Let's proceed to step 6:
The number 209 fits into 1589 7 times, leaving a remainder of 126.
Write down 7 as next digit of the result. 
Result so far: 3907.0
The remainder is 126 after subtracting 1463 from 1589.
Take the next digit (0) from the dividend and append it to 126, then repeat: 1260 / 209

Moving on to step 7:
When dividing 1260 by 209, we get 6 with a remainder of 6.
The next digit of our result is 6. 
Result so far: 39076.0
Subtract 1254 from 1260 to get 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 209

Step 8:
When dividing 69 by 209, we get 0 with a remainder of 69.
The number 0 becomes the next digit in our result. 
Result so far: 390760.0
If we take 0 away from 69, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Moving on to step 9:
209 goes into 690 3 times with a remainder of 63.
Use 3 as the next digit of our solution. 
Result so far: 390760.3
If we take 627 away from 690, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 10:
When dividing 630 by 209, we get 3 with a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 390760.33
Subtract 627 from 630 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final result is 390760.33 with a remainder of 0.003.