We look at the division of 434659 by 86 
Let's see how many times 86 fits into 434659.

Step 1:
86 goes into 4 0 times with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 86

On to step 2:
86 goes into 43 0 times with a remainder of 43.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Fetch the next digit (4) from the dividend, attach it to 43 and continue: 434 / 86

Going ahead to step 3:
86 can be fit into 434 5 times, resulting in a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 430 away from 434, we end up with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 86

Moving on to step 4:
46 divided by 86 is 0 with a remainder of 46.
Use 0 as the next digit of our solution. 
Result so far: 50.0
If we subtract 0 from 46, we get 46.
Grab the next digit (5) from the dividend, add it to 46, then carry on: 465 / 86

On to step 5:
86 can be fit into 465 5 times, resulting in a remainder of 35.
The next digit of our result is 5. 
Result so far: 505.0
If we take 430 away from 465, we end up with 35.
Bring next digit (9) of the dividend behind the 35 and repeat the process: 359 / 86

Going ahead to step 6:
If we divide 359 by 86, we get 4 and a remainder of 15.
The next digit of our result is 4. 
Result so far: 5054.0
If we subtract 344 from 359, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 7:
When dividing 150 by 86, we get 1 with a remainder of 64.
The next digit of our result is 1. 
Result so far: 5054.1
If we take 86 away from 150, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 8:
When dividing 640 by 86, we get 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 5054.17
Subtract 602 from 640 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 9:
If we divide 380 by 86, we get 4 and a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 5054.174
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
When dividing 360 by 86, we get 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 5054.1744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 5054.1744 with a remaining 0.00016.