We divide 399122 by 9
We want to figure out the number of times 399122 can be divided by 9.

Moving on to step 1:
9 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 9

Step 2:
The number 9 fits into 39 4 times, leaving a remainder of 3.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 36 from 39 leaves us with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 9

Step 3:
39 divided by 9 is 4 with a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 44.0
Deduct 36 from 39 and we're left with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 9

On to step 4:
If we divide 31 by 9, we get 3 and a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 443.0
Deduct 27 from 31 and we're left with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 9

Advancing to step 5:
If we divide 42 by 9, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4434.0
Subtract 36 from 42 to get 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 9

Going ahead to step 6:
When dividing 62 by 9, we get 6 with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 44346.0
The remainder is 8 after subtracting 54 from 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 7:
The number 9 fits into 80 8 times, leaving a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 44346.8
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
If we divide 80 by 9, we get 8 and a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 44346.88
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 44346.88 with a remaining 0.008.