142473 ÷ 45 
Our goal is to divide 142473 by 45.

Advancing to step 1:
The number 45 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 45

Let's proceed to step 2:
14 divided by 45 is 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 14, we get 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 45

On to step 3:
45 goes into 142 3 times with a remainder of 7.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 7 after subtracting 135 from 142.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 45

Let's proceed to step 4:
If we divide 74 by 45, we get 1 and a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 31.0
If we subtract 45 from 74, we get 29.
Bring next digit (7) of the dividend behind the 29 and repeat the process: 297 / 45

On to step 5:
45 can be fit into 297 6 times, resulting in a remainder of 27.
Record the quotient 6 as the next digit in the result. 
Result so far: 316.0
The remainder is 27 after subtracting 270 from 297.
Bring next digit (3) of the dividend behind the 27 and repeat the process: 273 / 45

Moving on to step 6:
When dividing 273 by 45, we get 6 with a remainder of 3.
Write down 6 as next digit of the result. 
Result so far: 3166.0
Subtracting 270 from 273 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
45 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 3166.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 3166.06
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 9:
When dividing 300 by 45, we get 6 with a remainder of 30.
Put 6 as the next digit of the answer. 
Result so far: 3166.066
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 3166.066 with a remaining 0.003.