We look at the division of 172168 by 30 
We're looking to find how many times 30 goes into 172168.

Let's proceed to step 1:
30 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 30

Going ahead to step 2:
30 goes into 17 0 times with a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 17, we end up with 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 30

Advancing to step 3:
When dividing 172 by 30, we get 5 with a remainder of 22.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Deduct 150 from 172 and we're left with 22.
Append the next digit (1) from the dividend to 22 and continue with: 221 / 30

Advancing to step 4:
If we divide 221 by 30, we get 7 and a remainder of 11.
Record the quotient 7 as the next digit in the result. 
Result so far: 57.0
If we subtract 210 from 221, we get 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 30

Going ahead to step 5:
30 goes into 116 3 times with a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 573.0
If we take 90 away from 116, we end up with 26.
Append the next digit (8) from the dividend to 26 and continue with: 268 / 30

Going ahead to step 6:
The number 30 fits into 268 8 times, leaving a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 5738.0
Subtract 240 from 268 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 7:
If we divide 280 by 30, we get 9 and a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 5738.9
Subtract 270 from 280 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
30 goes into 100 3 times with a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 5738.93
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 9:
30 goes into 100 3 times with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 5738.933
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 5738.933 and a remainder of 0.001.