We look at the division of 878740 by 1 
We're looking to find how many times 1 goes into 878740.

On to step 1:
When dividing 8 by 1, we get 8 with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 0 after subtracting 8 from 8.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 1

Moving on to step 2:
If we divide 7 by 1, we get 7 and a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Deduct 7 from 7 and we're left with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 1

Moving on to step 3:
The number 1 fits into 8 8 times, leaving a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 878.0
Deduct 8 from 8 and we're left with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 1

Step 4:
If we divide 7 by 1, we get 7 and a remainder of 0.
The next digit of our result is 7. 
Result so far: 8787.0
If we subtract 7 from 7, we get 0.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Advancing to step 5:
4 divided by 1 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 87874.0
If we subtract 4 from 4, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Moving on to step 6:
When dividing 0 by 1, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 878740.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
1 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 878740.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 878740.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 878740.0 with a remainder of 0.0.