We divide 142089 by 54
We want to figure out the number of times 142089 can be divided by 54.

Advancing to step 1:
When dividing 1 by 54, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 54

On to step 2:
54 goes into 14 0 times with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 54

Advancing to step 3:
When dividing 142 by 54, we get 2 with a remainder of 34.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 108 from 142 and we're left with 34.
Take the next digit (0) from the dividend and append it to 34, then repeat: 340 / 54

Advancing to step 4:
340 divided by 54 is 6 with a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
Deduct 324 from 340 and we're left with 16.
Take the next digit (8) from the dividend and append it to 16, then repeat: 168 / 54

Step 5:
If we divide 168 by 54, we get 3 and a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 263.0
If we take 162 away from 168, we end up with 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 54

On to step 6:
54 goes into 69 1 times with a remainder of 15.
The next digit of our result is 1. 
Result so far: 2631.0
Deduct 54 from 69 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 7:
150 divided by 54 is 2 with a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 2631.2
Subtract 108 from 150 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 8:
When dividing 420 by 54, we get 7 with a remainder of 42.
Record the quotient 7 as the next digit in the result. 
Result so far: 2631.27
Subtracting 378 from 420 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 9:
420 divided by 54 is 7 with a remainder of 42.
Write down 7 as next digit of the result. 
Result so far: 2631.277
If we subtract 378 from 420, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

The final outcome is 2631.277, with a leftover of 0.0042.