421427 divided by 9 
Our goal is to divide 421427 by 9.

Let's proceed to step 1:
9 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 9

Step 2:
The number 9 fits into 42 4 times, leaving a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 36 from 42 and we're left with 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 9

Step 3:
The number 9 fits into 61 6 times, leaving a remainder of 7.
Use 6 as the next digit of our solution. 
Result so far: 46.0
The remainder is 7 after subtracting 54 from 61.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 9

Going ahead to step 4:
When dividing 74 by 9, we get 8 with a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 468.0
The remainder is 2 after subtracting 72 from 74.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 9

Going ahead to step 5:
22 divided by 9 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 4682.0
Subtracting 18 from 22 leaves us with 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 9

Moving on to step 6:
When dividing 47 by 9, we get 5 with a remainder of 2.
The number 5 becomes the next digit in our result. 
Result so far: 46825.0
If we subtract 45 from 47, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 7:
The number 9 fits into 20 2 times, leaving a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 46825.2
Subtracting 18 from 20 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
If we divide 20 by 9, we get 2 and a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 46825.22
Deduct 18 from 20 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 46825.22 with a remainder of 0.002.