We look at the division of 18343901 by 666 
Our goal is to divide 18343901 by 666.

Going ahead to step 1:
666 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 666

On to step 2:
If we divide 18 by 666, we get 0 and a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Bring next digit (3) of the dividend behind the 18 and repeat the process: 183 / 666

Going ahead to step 3:
666 can be fit into 183 0 times, resulting in a remainder of 183.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 183 after subtracting 0 from 183.
Include the next digit (4) from the dividend after 183, then repeat: 1834 / 666

Let's proceed to step 4:
666 goes into 1834 2 times with a remainder of 502.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 1332 from 1834 and we're left with 502.
Bring next digit (3) of the dividend behind the 502 and repeat the process: 5023 / 666

Step 5:
The number 666 fits into 5023 7 times, leaving a remainder of 361.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtracting 4662 from 5023 leaves us with 361.
Take the next digit (9) from the dividend and append it to 361, then repeat: 3619 / 666

On to step 6:
3619 divided by 666 is 5 with a remainder of 289.
The number 5 becomes the next digit in our result. 
Result so far: 275.0
The remainder is 289 after subtracting 3330 from 3619.
Grab the next digit (0) from the dividend, add it to 289, then carry on: 2890 / 666

Step 7:
The number 666 fits into 2890 4 times, leaving a remainder of 226.
Use 4 as the next digit of our solution. 
Result so far: 2754.0
Subtracting 2664 from 2890 leaves us with 226.
Include the next digit (1) from the dividend after 226, then repeat: 2261 / 666

On to step 8:
When dividing 2261 by 666, we get 3 with a remainder of 263.
The next digit of our result is 3. 
Result so far: 27543.0
Subtract 1998 from 2261 to get 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Let's proceed to step 9:
666 goes into 2630 3 times with a remainder of 632.
Record the quotient 3 as the next digit in the result. 
Result so far: 27543.3
Subtract 1998 from 2630 to get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Moving on to step 10:
666 goes into 6320 9 times with a remainder of 326.
Write down 9 as next digit of the result. 
Result so far: 27543.39
If we take 5994 away from 6320, we end up with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 11:
If we divide 3260 by 666, we get 4 and a remainder of 596.
Record the quotient 4 as the next digit in the result. 
Result so far: 27543.394
Subtract 2664 from 3260 to get 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Step 12:
666 can be fit into 5960 8 times, resulting in a remainder of 632.
Put 8 as the next digit of the answer. 
Result so far: 27543.3948
If we take 5328 away from 5960, we end up with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Going ahead to step 13:
666 goes into 6320 9 times with a remainder of 326.
Record the quotient 9 as the next digit in the result. 
Result so far: 27543.39489
If we take 5994 away from 6320, we end up with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

On to step 14:
666 can be fit into 3260 4 times, resulting in a remainder of 596.
The next digit of our result is 4. 
Result so far: 27543.394894
Deduct 2664 from 3260 and we're left with 596.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5960, and continue the process.

Moving on to step 15:
The number 666 fits into 5960 8 times, leaving a remainder of 632.
Use 8 as the next digit of our solution. 
Result so far: 27543.3948948
If we subtract 5328 from 5960, we get 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

Advancing to step 16:
666 can be fit into 6320 9 times, resulting in a remainder of 326.
Use 9 as the next digit of our solution. 
Result so far: 27543.39489489
Deduct 5994 from 6320 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

The final outcome is 27543.39489489, with a leftover of 3.26e-07.