We're dividing 393057 by 86 
Our goal is to divide 393057 by 86.

Going ahead to step 1:
The number 86 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 86

Advancing to step 2:
The number 86 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 39, we get 39.
Grab the next digit (3) from the dividend, add it to 39, then carry on: 393 / 86

Step 3:
393 divided by 86 is 4 with a remainder of 49.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 344 from 393 leaves us with 49.
Take the next digit (0) from the dividend and append it to 49, then repeat: 490 / 86

Going ahead to step 4:
The number 86 fits into 490 5 times, leaving a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 45.0
Subtract 430 from 490 to get 60.
Take the next digit (5) from the dividend and append it to 60, then repeat: 605 / 86

Moving on to step 5:
86 can be fit into 605 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 457.0
If we take 602 away from 605, we end up with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 86

Going ahead to step 6:
If we divide 37 by 86, we get 0 and a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 4570.0
Subtract 0 from 37 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
When dividing 370 by 86, we get 4 with a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 4570.4
Subtract 344 from 370 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
260 divided by 86 is 3 with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 4570.43
The remainder is 2 after subtracting 258 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 9:
86 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 4570.43
If we subtract 0 from 20, 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.

Moving on to step 10:
200 divided by 86 is 2 with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 4570.4302
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 11:
86 goes into 280 3 times with a remainder of 22.
Write down 3 as next digit of the result. 
Result so far: 4570.43023
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 12:
When dividing 220 by 86, we get 2 with a remainder of 48.
The number 2 becomes the next digit in our result. 
Result so far: 4570.430232
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.

Moving on to step 13:
86 can be fit into 480 5 times, resulting in a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 4570.4302325
Subtracting 430 from 480 leaves us 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.

Step 14:
If we divide 500 by 86, we get 5 and a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 4570.43023255
Subtracting 430 from 500 leaves us 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.

The quotient of the division is 4570.43023255, and the remainder is 7e-08.