We look at the division of 173680 by 3 
We want to figure out the number of times 173680 can be divided by 3.

Let's proceed to step 1:
If we divide 1 by 3, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 3

Going ahead to step 2:
3 goes into 17 5 times with a remainder of 2.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 15 from 17, we get 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 3

On to step 3:
23 divided by 3 is 7 with a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 57.0
Deduct 21 from 23 and we're left with 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 3

Let's proceed to step 4:
If we divide 26 by 3, we get 8 and a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 578.0
Subtracting 24 from 26 leaves us with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 3

Step 5:
When dividing 28 by 3, we get 9 with a remainder of 1.
The next digit of our result is 9. 
Result so far: 5789.0
Subtract 27 from 28 to get 1.
Fetch the next digit (0) from the dividend, attach it to 1 and continue: 10 / 3

Going ahead to step 6:
If we divide 10 by 3, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 57893.0
The remainder is 1 after subtracting 9 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
3 can be fit into 10 3 times, resulting in a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 57893.3
Subtract 9 from 10 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
If we divide 10 by 3, we get 3 and a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 57893.33
Subtract 9 from 10 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 57893.33 with a remainder of 0.001.