We're dividing 159585 by 43 
Let's see how many times 43 fits into 159585.

Advancing to step 1:
The number 43 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 43

Advancing to step 2:
If we divide 15 by 43, we get 0 and a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Append the next digit (9) from the dividend to 15 and continue with: 159 / 43

Advancing to step 3:
If we divide 159 by 43, we get 3 and a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtract 129 from 159 to get 30.
Grab the next digit (5) from the dividend, add it to 30, then carry on: 305 / 43

Going ahead to step 4:
The number 43 fits into 305 7 times, leaving a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 37.0
The remainder is 4 after subtracting 301 from 305.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 43

Step 5:
48 divided by 43 is 1 with a remainder of 5.
The next digit of our result is 1. 
Result so far: 371.0
If we take 43 away from 48, we end up with 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 43

Going ahead to step 6:
When dividing 55 by 43, we get 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 3711.0
If we take 43 away from 55, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
120 divided by 43 is 2 with a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 3711.2
Deduct 86 from 120 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 8:
43 can be fit into 340 7 times, resulting in a remainder of 39.
Put 7 as the next digit of the answer. 
Result so far: 3711.27
The remainder is 39 after subtracting 301 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 9:
When dividing 390 by 43, we get 9 with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 3711.279
If we take 387 away from 390, we end up 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.

Advancing to step 10:
43 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 3711.279
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
43 goes into 300 6 times with a remainder of 42.
The next digit of our result is 6. 
Result so far: 3711.27906
If we take 258 away from 300, we end up 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.

Going ahead to step 12:
420 divided by 43 is 9 with a remainder of 33.
The number 9 becomes the next digit in our result. 
Result so far: 3711.279069
Subtract 387 from 420 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 13:
If we divide 330 by 43, we get 7 and a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 3711.2790697
If we subtract 301 from 330, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 14:
43 can be fit into 290 6 times, resulting in a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 3711.27906976
Subtracting 258 from 290 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 3711.27906976 with a remainder of 3.2e-08.