We're dividing 143759 by 8 
We want to divide 143759 by 8.

Let's proceed to step 1:
When dividing 1 by 8, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
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 / 8

Advancing to step 2:
When dividing 14 by 8, we get 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 6 after subtracting 8 from 14.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 8

On to step 3:
The number 8 fits into 63 7 times, leaving a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we take 56 away from 63, we end up with 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 8

On to step 4:
77 divided by 8 is 9 with a remainder of 5.
Use 9 as the next digit of our solution. 
Result so far: 179.0
Deduct 72 from 77 and we're left with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 8

Step 5:
8 goes into 55 6 times with a remainder of 7.
Record the quotient 6 as the next digit in the result. 
Result so far: 1796.0
If we subtract 48 from 55, we get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 8

Let's proceed to step 6:
8 can be fit into 79 9 times, resulting in a remainder of 7.
The next digit of our result is 9. 
Result so far: 17969.0
Subtract 72 from 79 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
8 goes into 70 8 times with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 17969.8
The remainder is 6 after subtracting 64 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 8:
If we divide 60 by 8, we get 7 and a remainder of 4.
The next digit of our result is 7. 
Result so far: 17969.87
If we take 56 away from 60, we end up 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.

Step 9:
40 divided by 8 is 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 17969.875
Deduct 40 from 40 and we're left 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.

On to step 10:
When dividing 0 by 8, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 17969.875
Subtracting 0 from 0 leaves us 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.

On to step 11:
When dividing 0 by 8, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 17969.875
Subtracting 0 from 0 leaves us 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 result is 17969.875 with a remainder of 0.0.