428009 ÷ 51 
Let's see how many times 51 fits into 428009.

On to step 1:
51 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 51

Step 2:
42 divided by 51 is 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 51

Step 3:
51 can be fit into 428 8 times, resulting in a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 8.0
The remainder is 20 after subtracting 408 from 428.
Include the next digit (0) from the dividend after 20, then repeat: 200 / 51

Step 4:
If we divide 200 by 51, we get 3 and a remainder of 47.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
Subtract 153 from 200 to get 47.
Fetch the next digit (0) from the dividend, attach it to 47 and continue: 470 / 51

Advancing to step 5:
When dividing 470 by 51, we get 9 with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 839.0
Subtracting 459 from 470 leaves us with 11.
Take the next digit (9) from the dividend and append it to 11, then repeat: 119 / 51

Let's proceed to step 6:
The number 51 fits into 119 2 times, leaving a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 8392.0
If we subtract 102 from 119, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 7:
If we divide 170 by 51, we get 3 and a remainder of 17.
The next digit of our result is 3. 
Result so far: 8392.3
Subtract 153 from 170 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
The number 51 fits into 170 3 times, leaving a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 8392.33
Subtracting 153 from 170 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

The final outcome is 8392.33, with a leftover of 0.017.