We look at the division of 43559 by 86 
Our goal is to divide 43559 by 86.

Step 1:
If we divide 4 by 86, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 86

Step 2:
The number 86 fits into 43 0 times, leaving a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Fetch the next digit (5) from the dividend, attach it to 43 and continue: 435 / 86

Let's proceed to step 3:
86 goes into 435 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 430 away from 435, we end up with 5.
Grab the next digit (5) from the dividend, add it to 5, then carry on: 55 / 86

Let's proceed to step 4:
86 goes into 55 0 times with a remainder of 55.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
If we subtract 0 from 55, we get 55.
Take the next digit (9) from the dividend and append it to 55, then repeat: 559 / 86

Let's proceed to step 5:
559 divided by 86 is 6 with a remainder of 43.
Use 6 as the next digit of our solution. 
Result so far: 506.0
The remainder is 43 after subtracting 516 from 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 6:
If we divide 430 by 86, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 506.5
The remainder is 0 after subtracting 430 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
If we divide 0 by 86, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 506.5
The remainder is 0 after subtracting 0 from 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:
When dividing 0 by 86, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 506.5
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 result is 506.5 with a remainder of 0.0.