We divide 407189 by 9
We want to divide 407189 by 9.

Step 1:
When dividing 4 by 9, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 9

Moving on to step 2:
If we divide 40 by 9, we get 4 and a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 4 after subtracting 36 from 40.
Grab the next digit (7) from the dividend, add it to 4, then carry on: 47 / 9

Step 3:
9 goes into 47 5 times with a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 45.0
If we subtract 45 from 47, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 9

Step 4:
When dividing 21 by 9, we get 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 452.0
If we subtract 18 from 21, we get 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 9

Step 5:
9 goes into 38 4 times with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 4524.0
If we subtract 36 from 38, we get 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 9

Going ahead to step 6:
If we divide 29 by 9, we get 3 and a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 45243.0
Subtract 27 from 29 to 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:
9 goes into 20 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 45243.2
If we subtract 18 from 20, 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.

Let's proceed to step 8:
When dividing 20 by 9, we get 2 with a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 45243.22
The remainder is 2 after subtracting 18 from 20.
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 45243.22 with a remainder of 0.002.