We're dividing 142029 by 86 
Let's see how many times 86 fits into 142029.

Step 1:
1 divided by 86 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 86

Going ahead to step 2:
When dividing 14 by 86, we get 0 with a remainder of 14.
Record the quotient 0 as the next digit in the result. 
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 / 86

Going ahead to step 3:
If we divide 142 by 86, we get 1 and a remainder of 56.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 86 away from 142, we end up with 56.
Bring next digit (0) of the dividend behind the 56 and repeat the process: 560 / 86

Step 4:
560 divided by 86 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Deduct 516 from 560 and we're left with 44.
Take the next digit (2) from the dividend and append it to 44, then repeat: 442 / 86

Moving on to step 5:
If we divide 442 by 86, we get 5 and a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 165.0
Subtracting 430 from 442 leaves us with 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 86

Step 6:
86 goes into 129 1 times with a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 1651.0
If we subtract 86 from 129, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 7:
When dividing 430 by 86, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1651.5
If we subtract 430 from 430, we get 0.
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 8:
If we divide 0 by 86, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1651.5
If we take 0 away from 0, we end up 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.

Advancing to step 9:
When dividing 0 by 86, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1651.5
If we take 0 away from 0, we end up 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.

The final outcome is 1651.5, with a leftover of 0.0.