423318 divided by 86 
Our goal is to divide 423318 by 86.

On to step 1:
4 divided by 86 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 86

Moving on to step 2:
86 goes into 42 0 times with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (3) of the dividend behind the 42 and repeat the process: 423 / 86

On to step 3:
If we divide 423 by 86, we get 4 and a remainder of 79.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 344 from 423 leaves us with 79.
Take the next digit (3) from the dividend and append it to 79, then repeat: 793 / 86

Going ahead to step 4:
If we divide 793 by 86, we get 9 and a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 49.0
If we take 774 away from 793, we end up with 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 86

Step 5:
191 divided by 86 is 2 with a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 492.0
Deduct 172 from 191 and we're left with 19.
Fetch the next digit (8) from the dividend, attach it to 19 and continue: 198 / 86

Let's proceed to step 6:
When dividing 198 by 86, we get 2 with a remainder of 26.
Record the quotient 2 as the next digit in the result. 
Result so far: 4922.0
Subtracting 172 from 198 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 7:
86 can be fit into 260 3 times, resulting in a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 4922.3
If we take 258 away from 260, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
When dividing 20 by 86, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 4922.3
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
When dividing 200 by 86, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 4922.302
If we subtract 172 from 200, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 10:
86 can be fit into 280 3 times, resulting in a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 4922.3023
Subtracting 258 from 280 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 11:
220 divided by 86 is 2 with a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 4922.30232
If we subtract 172 from 220, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
When dividing 480 by 86, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 4922.302325
If we take 430 away from 480, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 13:
When dividing 500 by 86, we get 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 4922.3023255
The remainder is 70 after subtracting 430 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 4922.3023255, with a leftover of 7e-07.