Let's divide 665173 by 53
We're looking to find how many times 53 goes into 665173.

On to step 1:
If we divide 6 by 53, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 53

Going ahead to step 2:
The number 53 fits into 66 1 times, leaving a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 53 from 66, we get 13.
Include the next digit (5) from the dividend after 13, then repeat: 135 / 53

On to step 3:
53 can be fit into 135 2 times, resulting in a remainder of 29.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtracting 106 from 135 leaves us with 29.
Include the next digit (1) from the dividend after 29, then repeat: 291 / 53

On to step 4:
The number 53 fits into 291 5 times, leaving a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 125.0
If we take 265 away from 291, we end up with 26.
Fetch the next digit (7) from the dividend, attach it to 26 and continue: 267 / 53

Moving on to step 5:
267 divided by 53 is 5 with a remainder of 2.
Put 5 as the next digit of the answer. 
Result so far: 1255.0
If we subtract 265 from 267, we get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 53

Moving on to step 6:
23 divided by 53 is 0 with a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 12550.0
The remainder is 23 after subtracting 0 from 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
The number 53 fits into 230 4 times, leaving a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 12550.4
If we take 212 away from 230, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 8:
If we divide 180 by 53, we get 3 and a remainder of 21.
The next digit of our result is 3. 
Result so far: 12550.43
Subtract 159 from 180 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 9:
The number 53 fits into 210 3 times, leaving a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 12550.433
If we take 159 away from 210, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

The final outcome is 12550.433, with a leftover of 0.0051.