We're dividing 185173 by 42 
Let's see how many times 42 fits into 185173.

Moving on to step 1:
When dividing 1 by 42, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 42

Advancing to step 2:
42 goes into 18 0 times with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Take the next digit (5) from the dividend and append it to 18, then repeat: 185 / 42

Let's proceed to step 3:
If we divide 185 by 42, we get 4 and a remainder of 17.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 17 after subtracting 168 from 185.
Fetch the next digit (1) from the dividend, attach it to 17 and continue: 171 / 42

On to step 4:
If we divide 171 by 42, we get 4 and a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Subtracting 168 from 171 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 42

Let's proceed to step 5:
37 divided by 42 is 0 with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 440.0
Subtract 0 from 37 to get 37.
Fetch the next digit (3) from the dividend, attach it to 37 and continue: 373 / 42

Going ahead to step 6:
42 can be fit into 373 8 times, resulting in a remainder of 37.
Put 8 as the next digit of the answer. 
Result so far: 4408.0
If we take 336 away from 373, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 7:
42 can be fit into 370 8 times, resulting in a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 4408.8
The remainder is 34 after subtracting 336 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 8:
The number 42 fits into 340 8 times, leaving a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 4408.88
Deduct 336 from 340 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Our division results in 4408.88 with a remaining 0.004.