57855 ÷ 86 
We want to divide 57855 by 86.

On to step 1:
86 can be fit into 5 0 times, resulting in a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 86

On to step 2:
86 goes into 57 0 times with a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Append the next digit (8) from the dividend to 57 and continue with: 578 / 86

On to step 3:
86 goes into 578 6 times with a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Deduct 516 from 578 and we're left with 62.
Fetch the next digit (5) from the dividend, attach it to 62 and continue: 625 / 86

Let's proceed to step 4:
625 divided by 86 is 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 67.0
Subtracting 602 from 625 leaves us with 23.
Bring next digit (5) of the dividend behind the 23 and repeat the process: 235 / 86

On to step 5:
86 goes into 235 2 times with a remainder of 63.
Write down 2 as next digit of the result. 
Result so far: 672.0
If we take 172 away from 235, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 6:
The number 86 fits into 630 7 times, leaving a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 672.7
The remainder is 28 after subtracting 602 from 630.
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 7:
280 divided by 86 is 3 with a remainder of 22.
Put 3 as the next digit of the answer. 
Result so far: 672.73
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.

On to step 8:
If we divide 220 by 86, we get 2 and a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 672.732
Deduct 172 from 220 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
480 divided by 86 is 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 672.7325
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.

Advancing to step 10:
500 divided by 86 is 5 with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 672.73255
If we take 430 away from 500, we end up 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 672.73255 with a remaining 7e-05.