We look at the division of 423853 by 87 
Our goal is to divide 423853 by 87.

Advancing to step 1:
87 can be fit into 4 0 times, resulting in 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.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 87

Going ahead to step 2:
87 can be fit into 42 0 times, resulting in a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Take the next digit (3) from the dividend and append it to 42, then repeat: 423 / 87

Advancing to step 3:
The number 87 fits into 423 4 times, leaving a remainder of 75.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
The remainder is 75 after subtracting 348 from 423.
Include the next digit (8) from the dividend after 75, then repeat: 758 / 87

On to step 4:
The number 87 fits into 758 8 times, leaving a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 48.0
If we take 696 away from 758, we end up with 62.
Take the next digit (5) from the dividend and append it to 62, then repeat: 625 / 87

Step 5:
When dividing 625 by 87, we get 7 with a remainder of 16.
Use 7 as the next digit of our solution. 
Result so far: 487.0
Deduct 609 from 625 and we're left with 16.
Append the next digit (3) from the dividend to 16 and continue with: 163 / 87

Going ahead to step 6:
163 divided by 87 is 1 with a remainder of 76.
The next digit of our result is 1. 
Result so far: 4871.0
If we subtract 87 from 163, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 7:
When dividing 760 by 87, we get 8 with a remainder of 64.
The next digit of our result is 8. 
Result so far: 4871.8
Subtract 696 from 760 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 8:
640 divided by 87 is 7 with a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 4871.87
Subtract 609 from 640 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 9:
87 can be fit into 310 3 times, resulting in a remainder of 49.
Write down 3 as next digit of the result. 
Result so far: 4871.873
The remainder is 49 after subtracting 261 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 10:
The number 87 fits into 490 5 times, leaving a remainder of 55.
The next digit of our result is 5. 
Result so far: 4871.8735
Deduct 435 from 490 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
550 divided by 87 is 6 with a remainder of 28.
Record the quotient 6 as the next digit in the result. 
Result so far: 4871.87356
Subtracting 522 from 550 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 12:
87 goes into 280 3 times with a remainder of 19.
Use 3 as the next digit of our solution. 
Result so far: 4871.873563
If we take 261 away from 280, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 13:
87 goes into 190 2 times with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 4871.8735632
Subtract 174 from 190 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.

Step 14:
If we divide 160 by 87, we get 1 and a remainder of 73.
The number 1 becomes the next digit in our result. 
Result so far: 4871.87356321
The remainder is 73 after subtracting 87 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

The final result is 4871.87356321 with a remainder of 7.3e-08.