Let's divide 349870 by 18
We're looking to find how many times 18 goes into 349870.

Advancing to step 1:
The number 18 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 18

On to step 2:
If we divide 34 by 18, we get 1 and a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 18 away from 34, we end up with 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 18

Step 3:
169 divided by 18 is 9 with a remainder of 7.
The next digit of our result is 9. 
Result so far: 19.0
Deduct 162 from 169 and we're left with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 18

On to step 4:
18 goes into 78 4 times with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 194.0
Deduct 72 from 78 and we're left with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 18

Going ahead to step 5:
18 goes into 67 3 times with a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 1943.0
If we take 54 away from 67, we end up with 13.
Bring next digit (0) of the dividend behind the 13 and repeat the process: 130 / 18

Step 6:
18 goes into 130 7 times with a remainder of 4.
The next digit of our result is 7. 
Result so far: 19437.0
Subtracting 126 from 130 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 7:
The number 18 fits into 40 2 times, leaving a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 19437.2
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 8:
18 goes into 40 2 times with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 19437.22
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 19437.22 with a remaining 0.004.