We're dividing 143440 by 60 
Let's see how many times 60 fits into 143440.

Advancing to step 1:
When dividing 1 by 60, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 60

Going ahead to step 2:
14 divided by 60 is 0 with a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 60

Going ahead to step 3:
143 divided by 60 is 2 with a remainder of 23.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 120 from 143 leaves us with 23.
Append the next digit (4) from the dividend to 23 and continue with: 234 / 60

Step 4:
The number 60 fits into 234 3 times, leaving a remainder of 54.
Use 3 as the next digit of our solution. 
Result so far: 23.0
Deduct 180 from 234 and we're left with 54.
Include the next digit (4) from the dividend after 54, then repeat: 544 / 60

Advancing to step 5:
544 divided by 60 is 9 with a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 239.0
Subtracting 540 from 544 leaves us with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 60

Advancing to step 6:
40 divided by 60 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 2390.0
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 7:
When dividing 400 by 60, we get 6 with a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 2390.6
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
60 goes into 400 6 times with a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 2390.66
The remainder is 40 after subtracting 360 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 2390.66 with a remainder of 0.04.