Let's divide 390799 by 84
Let's see how many times 84 fits into 390799.

Advancing to step 1:
The number 84 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 84

On to step 2:
The number 84 fits into 39 0 times, leaving a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 84

Going ahead to step 3:
84 can be fit into 390 4 times, resulting in a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 336 from 390 and we're left with 54.
Take the next digit (7) from the dividend and append it to 54, then repeat: 547 / 84

Advancing to step 4:
The number 84 fits into 547 6 times, leaving a remainder of 43.
Record the quotient 6 as the next digit in the result. 
Result so far: 46.0
The remainder is 43 after subtracting 504 from 547.
Include the next digit (9) from the dividend after 43, then repeat: 439 / 84

On to step 5:
439 divided by 84 is 5 with a remainder of 19.
Use 5 as the next digit of our solution. 
Result so far: 465.0
Deduct 420 from 439 and we're left with 19.
Append the next digit (9) from the dividend to 19 and continue with: 199 / 84

Step 6:
199 divided by 84 is 2 with a remainder of 31.
Put 2 as the next digit of the answer. 
Result so far: 4652.0
Subtracting 168 from 199 leaves us with 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 7:
The number 84 fits into 310 3 times, leaving a remainder of 58.
The next digit of our result is 3. 
Result so far: 4652.3
If we take 252 away from 310, we end up 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.

Let's proceed to step 8:
84 goes into 580 6 times with a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 4652.36
The remainder is 76 after subtracting 504 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 9:
The number 84 fits into 760 9 times, leaving a remainder of 4.
Write down 9 as next digit of the result. 
Result so far: 4652.369
Subtract 756 from 760 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
40 divided by 84 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 4652.369
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
84 can be fit into 400 4 times, resulting in a remainder of 64.
The next digit of our result is 4. 
Result so far: 4652.36904
The remainder is 64 after subtracting 336 from 400.
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 12:
If we divide 640 by 84, we get 7 and a remainder of 52.
The number 7 becomes the next digit in our result. 
Result so far: 4652.369047
Subtracting 588 from 640 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 13:
84 goes into 520 6 times with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 4652.3690476
Deduct 504 from 520 and we're left 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.

Let's proceed to step 14:
84 goes into 160 1 times with a remainder of 76.
Put 1 as the next digit of the answer. 
Result so far: 4652.36904761
The remainder is 76 after subtracting 84 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

After the division, we end up with 4652.36904761 and a remainder of 7.6e-08.