Let's divide 425878 by 1
We want to figure out the number of times 425878 can be divided by 1.

Step 1:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 4 from 4 to get 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 1

On to step 2:
2 divided by 1 is 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
If we take 2 away from 2, we end up with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 1

Advancing to step 3:
1 goes into 5 5 times with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 425.0
Subtract 5 from 5 to get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 1

On to step 4:
1 can be fit into 8 8 times, resulting in a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 4258.0
If we subtract 8 from 8, we get 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 1

On to step 5:
1 can be fit into 7 7 times, resulting in a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 42587.0
Subtract 7 from 7 to get 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 1

Going ahead to step 6:
1 goes into 8 8 times with a remainder of 0.
The next digit of our result is 8. 
Result so far: 425878.0
If we subtract 8 from 8, we 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.

On to step 7:
The number 1 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 425878.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 425878.0
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.

The final result is 425878.0 with a remainder of 0.0.