420173 ÷ 52 
Our goal is to divide 420173 by 52.

Let's proceed to step 1:
If we divide 4 by 52, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 52

Let's proceed to step 2:
52 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 52

Going ahead to step 3:
420 divided by 52 is 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 416 from 420 and we're left with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 52

Advancing to step 4:
When dividing 41 by 52, we get 0 with a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 80.0
If we subtract 0 from 41, we get 41.
Bring next digit (7) of the dividend behind the 41 and repeat the process: 417 / 52

Going ahead to step 5:
The number 52 fits into 417 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 808.0
Deduct 416 from 417 and we're left with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 52

Moving on to step 6:
The number 52 fits into 13 0 times, leaving a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 8080.0
If we take 0 away from 13, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 7:
When dividing 130 by 52, we get 2 with a remainder of 26.
The next digit of our result is 2. 
Result so far: 8080.2
If we take 104 away from 130, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 8:
The number 52 fits into 260 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 8080.25
The remainder is 0 after subtracting 260 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
52 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 8080.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
52 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 8080.25
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 8080.25, with a leftover of 0.0.