We're dividing 315207 by 84 
We want to divide 315207 by 84.

Going ahead to step 1:
When dividing 3 by 84, we get 0 with 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.
Append the next digit (1) from the dividend to 3 and continue with: 31 / 84

Step 2:
84 can be fit into 31 0 times, resulting in a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Take the next digit (5) from the dividend and append it to 31, then repeat: 315 / 84

Step 3:
315 divided by 84 is 3 with a remainder of 63.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 252 from 315, we get 63.
Grab the next digit (2) from the dividend, add it to 63, then carry on: 632 / 84

Moving on to step 4:
The number 84 fits into 632 7 times, leaving a remainder of 44.
Use 7 as the next digit of our solution. 
Result so far: 37.0
If we subtract 588 from 632, we get 44.
Grab the next digit (0) from the dividend, add it to 44, then carry on: 440 / 84

Moving on to step 5:
When dividing 440 by 84, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 375.0
If we subtract 420 from 440, we get 20.
Include the next digit (7) from the dividend after 20, then repeat: 207 / 84

Going ahead to step 6:
The number 84 fits into 207 2 times, leaving a remainder of 39.
Write down 2 as next digit of the result. 
Result so far: 3752.0
The remainder is 39 after subtracting 168 from 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 7:
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: 3752.4
Subtracting 336 from 390 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 8:
540 divided by 84 is 6 with a remainder of 36.
The next digit of our result is 6. 
Result so far: 3752.46
Subtract 504 from 540 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
84 can be fit into 360 4 times, resulting in a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 3752.464
Subtract 336 from 360 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 10:
If we divide 240 by 84, we get 2 and a remainder of 72.
The next digit of our result is 2. 
Result so far: 3752.4642
Subtracting 168 from 240 leaves us 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.

Going ahead to step 11:
84 can be fit into 720 8 times, resulting in a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 3752.46428
The remainder is 48 after subtracting 672 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 12:
If we divide 480 by 84, we get 5 and a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 3752.464285
Subtracting 420 from 480 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
84 goes into 600 7 times with a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 3752.4642857
Subtract 588 from 600 to get 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 14:
When dividing 120 by 84, we get 1 with a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 3752.46428571
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final outcome is 3752.46428571, with a leftover of 3.6e-08.