435460 ÷ 86 
Our goal is to divide 435460 by 86.

Let's proceed to step 1:
The number 86 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 86

Advancing to step 2:
86 can be fit into 43 0 times, resulting in a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 86

Let's proceed to step 3:
86 can be fit into 435 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtract 430 from 435 to get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 86

Step 4:
54 divided by 86 is 0 with a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
Deduct 0 from 54 and we're left with 54.
Include the next digit (6) from the dividend after 54, then repeat: 546 / 86

On to step 5:
If we divide 546 by 86, we get 6 and a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 506.0
Subtract 516 from 546 to get 30.
Bring next digit (0) of the dividend behind the 30 and repeat the process: 300 / 86

On to step 6:
300 divided by 86 is 3 with a remainder of 42.
Use 3 as the next digit of our solution. 
Result so far: 5063.0
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.

Moving on to step 7:
86 can be fit into 420 4 times, resulting in a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 5063.4
If we take 344 away from 420, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 8:
When dividing 760 by 86, we get 8 with a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 5063.48
Subtracting 688 from 760 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 9:
If we divide 720 by 86, we get 8 and a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 5063.488
If we subtract 688 from 720, we get 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 outcome is 5063.488, with a leftover of 0.0032.