We're dividing 673616 by 18 
Let's see how many times 18 fits into 673616.

Step 1:
The number 18 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Append the next digit (7) from the dividend to 6 and continue with: 67 / 18

Step 2:
The number 18 fits into 67 3 times, leaving a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 54 away from 67, we end up with 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 18

Advancing to step 3:
18 goes into 133 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 37.0
The remainder is 7 after subtracting 126 from 133.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 18

Step 4:
If we divide 76 by 18, we get 4 and a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 374.0
Deduct 72 from 76 and we're left with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 18

Going ahead to step 5:
If we divide 41 by 18, we get 2 and a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 3742.0
If we subtract 36 from 41, we get 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 18

Moving on to step 6:
When dividing 56 by 18, we get 3 with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 37423.0
If we subtract 54 from 56, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
If we divide 20 by 18, we get 1 and a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 37423.1
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
18 can be fit into 20 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 37423.11
Deduct 18 from 20 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 37423.11 with a remainder of 0.002.