878146 ÷ 78 
We're looking to find how many times 78 goes into 878146.

Step 1:
8 divided by 78 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 78

Moving on to step 2:
The number 78 fits into 87 1 times, leaving a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 78 from 87 leaves us with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 78

Moving on to step 3:
If we divide 98 by 78, we get 1 and a remainder of 20.
The next digit of our result is 1. 
Result so far: 11.0
If we subtract 78 from 98, we get 20.
Fetch the next digit (1) from the dividend, attach it to 20 and continue: 201 / 78

Step 4:
78 can be fit into 201 2 times, resulting in a remainder of 45.
Use 2 as the next digit of our solution. 
Result so far: 112.0
Subtracting 156 from 201 leaves us with 45.
Take the next digit (4) from the dividend and append it to 45, then repeat: 454 / 78

Step 5:
The number 78 fits into 454 5 times, leaving a remainder of 64.
Record the quotient 5 as the next digit in the result. 
Result so far: 1125.0
Subtracting 390 from 454 leaves us with 64.
Grab the next digit (6) from the dividend, add it to 64, then carry on: 646 / 78

Advancing to step 6:
When dividing 646 by 78, we get 8 with a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 11258.0
Deduct 624 from 646 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 7:
78 can be fit into 220 2 times, resulting in a remainder of 64.
The next digit of our result is 2. 
Result so far: 11258.2
The remainder is 64 after subtracting 156 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 8:
78 goes into 640 8 times with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 11258.28
If we take 624 away from 640, 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.

Moving on to step 9:
78 can be fit into 160 2 times, resulting in a remainder of 4.
The next digit of our result is 2. 
Result so far: 11258.282
Subtract 156 from 160 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:
If we divide 40 by 78, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 11258.282
Subtracting 0 from 40 leaves us 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 11:
The number 78 fits into 400 5 times, leaving a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 11258.28205
If we subtract 390 from 400, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
78 can be fit into 100 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 11258.282051
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 13:
The number 78 fits into 220 2 times, leaving a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 11258.2820512
The remainder is 64 after subtracting 156 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 14:
78 goes into 640 8 times with a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 11258.28205128
Subtracting 624 from 640 leaves us 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.

Our division results in 11258.28205128 with a remaining 1.6e-08.