We're dividing 363879 by 42 
Our goal is to divide 363879 by 42.

Let's proceed to step 1:
The number 42 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Grab the next digit (6) from the dividend, add it to 3, then carry on: 36 / 42

On to step 2:
36 divided by 42 is 0 with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 36 after subtracting 0 from 36.
Bring next digit (3) of the dividend behind the 36 and repeat the process: 363 / 42

Going ahead to step 3:
When dividing 363 by 42, we get 8 with a remainder of 27.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 336 from 363 leaves us with 27.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 42

Going ahead to step 4:
42 can be fit into 278 6 times, resulting in a remainder of 26.
The next digit of our result is 6. 
Result so far: 86.0
If we subtract 252 from 278, we get 26.
Take the next digit (7) from the dividend and append it to 26, then repeat: 267 / 42

On to step 5:
267 divided by 42 is 6 with a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 866.0
Subtract 252 from 267 to get 15.
Bring next digit (9) of the dividend behind the 15 and repeat the process: 159 / 42

On to step 6:
42 goes into 159 3 times with a remainder of 33.
Use 3 as the next digit of our solution. 
Result so far: 8663.0
Subtracting 126 from 159 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Let's proceed to step 7:
When dividing 330 by 42, we get 7 with a remainder of 36.
Put 7 as the next digit of the answer. 
Result so far: 8663.7
Subtract 294 from 330 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 8:
If we divide 360 by 42, we get 8 and a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 8663.78
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
42 goes into 240 5 times with a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 8663.785
Subtracting 210 from 240 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 10:
When dividing 300 by 42, we get 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 8663.7857
If we subtract 294 from 300, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 11:
When dividing 60 by 42, we get 1 with a remainder of 18.
Use 1 as the next digit of our solution. 
Result so far: 8663.78571
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 12:
If we divide 180 by 42, we get 4 and a remainder of 12.
Write down 4 as next digit of the result. 
Result so far: 8663.785714
Subtracting 168 from 180 leaves us 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.

Let's proceed to step 13:
42 can be fit into 120 2 times, resulting in a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 8663.7857142
Subtracting 84 from 120 leaves us 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.

Let's proceed to step 14:
If we divide 360 by 42, we get 8 and a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 8663.78571428
If we subtract 336 from 360, we 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.

The final outcome is 8663.78571428, with a leftover of 2.4e-08.