392445 divided by 86 
Let's see how many times 86 fits into 392445.

Going ahead to step 1:
If we divide 3 by 86, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 86

Going ahead 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
Subtracting 0 from 39 leaves us with 39.
Fetch the next digit (2) from the dividend, attach it to 39 and continue: 392 / 86

Moving on to step 3:
The number 86 fits into 392 4 times, leaving a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 344 away from 392, we end up with 48.
Include the next digit (4) from the dividend after 48, then repeat: 484 / 86

Advancing to step 4:
86 goes into 484 5 times with a remainder of 54.
Write down 5 as next digit of the result. 
Result so far: 45.0
Subtracting 430 from 484 leaves us with 54.
Fetch the next digit (4) from the dividend, attach it to 54 and continue: 544 / 86

Going ahead to step 5:
86 goes into 544 6 times with a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 456.0
Subtract 516 from 544 to get 28.
Bring next digit (5) of the dividend behind the 28 and repeat the process: 285 / 86

Moving on to step 6:
If we divide 285 by 86, we get 3 and a remainder of 27.
The next digit of our result is 3. 
Result so far: 4563.0
The remainder is 27 after subtracting 258 from 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 7:
If we divide 270 by 86, we get 3 and a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 4563.3
If we take 258 away from 270, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
The number 86 fits into 120 1 times, leaving a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 4563.31
The remainder is 34 after subtracting 86 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 9:
The number 86 fits into 340 3 times, leaving a remainder of 82.
Put 3 as the next digit of the answer. 
Result so far: 4563.313
If we subtract 258 from 340, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 10:
The number 86 fits into 820 9 times, leaving a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 4563.3139
Subtract 774 from 820 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 11:
460 divided by 86 is 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 4563.31395
The remainder is 30 after subtracting 430 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
300 divided by 86 is 3 with a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 4563.313953
Deduct 258 from 300 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 13:
86 goes into 420 4 times with a remainder of 76.
Record the quotient 4 as the next digit in the result. 
Result so far: 4563.3139534
Deduct 344 from 420 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 14:
If we divide 760 by 86, we get 8 and a remainder of 72.
Use 8 as the next digit of our solution. 
Result so far: 4563.31395348
Deduct 688 from 760 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Our division results in 4563.31395348 with a remaining 7.2e-08.