We're dividing 428890 by 10 
Let's see how many times 10 fits into 428890.

On to step 1:
The number 10 fits into 4 0 times, leaving 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.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 10

Advancing to step 2:
10 can be fit into 42 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 4.0
The remainder is 2 after subtracting 40 from 42.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 10

Step 3:
28 divided by 10 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtract 20 from 28 to get 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 10

Advancing to step 4:
The number 10 fits into 88 8 times, leaving a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 428.0
If we subtract 80 from 88, we get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 10

Advancing to step 5:
The number 10 fits into 89 8 times, leaving a remainder of 9.
The next digit of our result is 8. 
Result so far: 4288.0
Subtracting 80 from 89 leaves us with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 10

Advancing to step 6:
The number 10 fits into 90 9 times, leaving a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 42889.0
If we subtract 90 from 90, 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.

Moving on to step 7:
0 divided by 10 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 42889.0
If we subtract 0 from 0, 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.

Moving on to step 8:
0 divided by 10 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 42889.0
If we subtract 0 from 0, 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.

The final result is 42889.0 with a remainder of 0.0.