42873 divided by 86 
Our goal is to divide 42873 by 86.

Step 1:
4 divided by 86 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 86

Let's proceed to step 2:
If we divide 42 by 86, we get 0 and a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Append the next digit (8) from the dividend to 42 and continue with: 428 / 86

Let's proceed to step 3:
86 can be fit into 428 4 times, resulting in a remainder of 84.
The next digit of our result is 4. 
Result so far: 4.0
If we take 344 away from 428, we end up with 84.
Grab the next digit (7) from the dividend, add it to 84, then carry on: 847 / 86

Advancing to step 4:
If we divide 847 by 86, we get 9 and a remainder of 73.
Record the quotient 9 as the next digit in the result. 
Result so far: 49.0
If we take 774 away from 847, we end up with 73.
Bring next digit (3) of the dividend behind the 73 and repeat the process: 733 / 86

Moving on to step 5:
86 can be fit into 733 8 times, resulting in a remainder of 45.
The next digit of our result is 8. 
Result so far: 498.0
Subtracting 688 from 733 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 6:
86 goes into 450 5 times with a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 498.5
If we subtract 430 from 450, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 7:
200 divided by 86 is 2 with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 498.52
Subtract 172 from 200 to 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.

On to step 8:
When dividing 280 by 86, we get 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 498.523
Subtract 258 from 280 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 9:
220 divided by 86 is 2 with a remainder of 48.
The next digit of our result is 2. 
Result so far: 498.5232
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.

Advancing to step 10:
86 can be fit into 480 5 times, resulting in a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 498.52325
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 11:
If we divide 500 by 86, we get 5 and a remainder of 70.
The next digit of our result is 5. 
Result so far: 498.523255
Deduct 430 from 500 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 498.523255 with a remaining 7e-06.