Let's divide 669837 by 18
Our goal is to divide 669837 by 18.

On to step 1:
When dividing 6 by 18, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 18

Going ahead to step 2:
66 divided by 18 is 3 with a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
If we take 54 away from 66, we end up with 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 18

Going ahead to step 3:
If we divide 129 by 18, we get 7 and a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 37.0
The remainder is 3 after subtracting 126 from 129.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 18

On to step 4:
When dividing 38 by 18, we get 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 372.0
The remainder is 2 after subtracting 36 from 38.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 18

Going ahead to step 5:
18 can be fit into 23 1 times, resulting in a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 3721.0
If we subtract 18 from 23, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 18

Let's proceed to step 6:
The number 18 fits into 57 3 times, leaving a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 37213.0
Deduct 54 from 57 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
When dividing 30 by 18, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 37213.1
If we subtract 18 from 30, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 8:
When dividing 120 by 18, we get 6 with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 37213.16
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
18 can be fit into 120 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 37213.166
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Our division results in 37213.166 with a remaining 0.0012.