397816 ÷ 84 
We want to figure out the number of times 397816 can be divided by 84.

Let's proceed to step 1:
3 divided by 84 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 84

Step 2:
The number 84 fits into 39 0 times, leaving a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 39 leaves us with 39.
Take the next digit (7) from the dividend and append it to 39, then repeat: 397 / 84

Advancing to step 3:
The number 84 fits into 397 4 times, leaving a remainder of 61.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtract 336 from 397 to get 61.
Grab the next digit (8) from the dividend, add it to 61, then carry on: 618 / 84

On to step 4:
84 goes into 618 7 times with a remainder of 30.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Deduct 588 from 618 and we're left with 30.
Take the next digit (1) from the dividend and append it to 30, then repeat: 301 / 84

Advancing to step 5:
84 goes into 301 3 times with a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 473.0
Subtract 252 from 301 to get 49.
Fetch the next digit (6) from the dividend, attach it to 49 and continue: 496 / 84

Going ahead to step 6:
84 goes into 496 5 times with a remainder of 76.
Put 5 as the next digit of the answer. 
Result so far: 4735.0
The remainder is 76 after subtracting 420 from 496.
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 7:
84 goes into 760 9 times with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 4735.9
The remainder is 4 after subtracting 756 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
84 can be fit into 40 0 times, resulting in a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 4735.9
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
The number 84 fits into 400 4 times, leaving a remainder of 64.
The number 4 becomes the next digit in our result. 
Result so far: 4735.904
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.

Advancing to step 10:
The number 84 fits into 640 7 times, leaving a remainder of 52.
The number 7 becomes the next digit in our result. 
Result so far: 4735.9047
If we take 588 away from 640, we end up 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 11:
520 divided by 84 is 6 with a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 4735.90476
If we take 504 away from 520, 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.

Advancing to step 12:
84 goes into 160 1 times with a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 4735.904761
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.

On to step 13:
When dividing 760 by 84, we get 9 with a remainder of 4.
Use 9 as the next digit of our solution. 
Result so far: 4735.9047619
The remainder is 4 after subtracting 756 from 760.
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 14:
84 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 4735.9047619
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 4735.9047619, with a leftover of 4e-08.