We're dividing 42878904 by 117 
We want to divide 42878904 by 117.

Moving on to step 1:
117 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 117

Step 2:
When dividing 42 by 117, we get 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Include the next digit (8) from the dividend after 42, then repeat: 428 / 117

Step 3:
117 goes into 428 3 times with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 351 from 428 and we're left with 77.
Take the next digit (7) from the dividend and append it to 77, then repeat: 777 / 117

Step 4:
The number 117 fits into 777 6 times, leaving a remainder of 75.
The next digit of our result is 6. 
Result so far: 36.0
If we subtract 702 from 777, we get 75.
Take the next digit (8) from the dividend and append it to 75, then repeat: 758 / 117

Let's proceed to step 5:
If we divide 758 by 117, we get 6 and a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 366.0
The remainder is 56 after subtracting 702 from 758.
Take the next digit (9) from the dividend and append it to 56, then repeat: 569 / 117

Moving on to step 6:
569 divided by 117 is 4 with a remainder of 101.
The next digit of our result is 4. 
Result so far: 3664.0
Subtract 468 from 569 to get 101.
Bring next digit (0) of the dividend behind the 101 and repeat the process: 1010 / 117

Let's proceed to step 7:
117 goes into 1010 8 times with a remainder of 74.
Write down 8 as next digit of the result. 
Result so far: 36648.0
Subtracting 936 from 1010 leaves us with 74.
Fetch the next digit (4) from the dividend, attach it to 74 and continue: 744 / 117

Going ahead to step 8:
The number 117 fits into 744 6 times, leaving a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 366486.0
Deduct 702 from 744 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 9:
117 goes into 420 3 times with a remainder of 69.
Write down 3 as next digit of the result. 
Result so far: 366486.3
Deduct 351 from 420 and we're left with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 10:
When dividing 690 by 117, we get 5 with a remainder of 105.
Write down 5 as next digit of the result. 
Result so far: 366486.35
If we take 585 away from 690, we end up with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 11:
117 goes into 1050 8 times with a remainder of 114.
Use 8 as the next digit of our solution. 
Result so far: 366486.358
Subtract 936 from 1050 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Going ahead to step 12:
117 can be fit into 1140 9 times, resulting in a remainder of 87.
The number 9 becomes the next digit in our result. 
Result so far: 366486.3589
Subtracting 1053 from 1140 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 13:
If we divide 870 by 117, we get 7 and a remainder of 51.
The next digit of our result is 7. 
Result so far: 366486.35897
Subtract 819 from 870 to get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Moving on to step 14:
117 goes into 510 4 times with a remainder of 42.
Put 4 as the next digit of the answer. 
Result so far: 366486.358974
If we subtract 468 from 510, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 15:
420 divided by 117 is 3 with a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 366486.3589743
Subtracting 351 from 420 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 16:
When dividing 690 by 117, we get 5 with a remainder of 105.
The next digit of our result is 5. 
Result so far: 366486.35897435
The remainder is 105 after subtracting 585 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

The final outcome is 366486.35897435, with a leftover of 1.05e-07.