393602 divided by 86 
We want to figure out the number of times 393602 can be divided by 86.

On to step 1:
When dividing 3 by 86, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 86

Step 2:
86 can be fit into 39 0 times, resulting in 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.
Fetch the next digit (3) from the dividend, attach it to 39 and continue: 393 / 86

Moving on to step 3:
If we divide 393 by 86, we get 4 and a remainder of 49.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 49 after subtracting 344 from 393.
Append the next digit (6) from the dividend to 49 and continue with: 496 / 86

Let's proceed to step 4:
86 can be fit into 496 5 times, resulting in a remainder of 66.
Put 5 as the next digit of the answer. 
Result so far: 45.0
If we subtract 430 from 496, we get 66.
Append the next digit (0) from the dividend to 66 and continue with: 660 / 86

On to step 5:
The number 86 fits into 660 7 times, leaving a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 457.0
If we take 602 away from 660, we end up with 58.
Fetch the next digit (2) from the dividend, attach it to 58 and continue: 582 / 86

Going ahead to step 6:
582 divided by 86 is 6 with a remainder of 66.
The next digit of our result is 6. 
Result so far: 4576.0
If we take 516 away from 582, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 7:
660 divided by 86 is 7 with a remainder of 58.
Put 7 as the next digit of the answer. 
Result so far: 4576.7
Deduct 602 from 660 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 8:
When dividing 580 by 86, we get 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 4576.76
The remainder is 64 after subtracting 516 from 580.
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 9:
86 can be fit into 640 7 times, resulting in a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 4576.767
If we take 602 away from 640, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 10:
86 can be fit into 380 4 times, resulting in a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 4576.7674
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 11:
86 goes into 360 4 times with a remainder of 16.
The next digit of our result is 4. 
Result so far: 4576.76744
If we take 344 away from 360, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 4576.76744, and the remainder is 1.6e-05.