We divide 670939 by 18
We're looking to find how many times 18 goes into 670939.

Step 1:
18 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 18

Advancing to step 2:
When dividing 67 by 18, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 54 from 67 to get 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 18

Step 3:
18 can be fit into 130 7 times, resulting in a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 37.0
Subtract 126 from 130 to get 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 18

Moving on to step 4:
49 divided by 18 is 2 with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 372.0
If we take 36 away from 49, we end up with 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 18

Step 5:
The number 18 fits into 133 7 times, leaving a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 3727.0
Subtracting 126 from 133 leaves us with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 18

On to step 6:
18 goes into 79 4 times with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 37274.0
Subtracting 72 from 79 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
18 goes into 70 3 times with a remainder of 16.
The next digit of our result is 3. 
Result so far: 37274.3
Deduct 54 from 70 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 8:
If we divide 160 by 18, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 37274.38
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 9:
The number 18 fits into 160 8 times, leaving a remainder of 16.
The next digit of our result is 8. 
Result so far: 37274.388
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 37274.388 and a remainder of 0.0016.