902379 divided by 9 
The aim is to understand the frequency of 9 in 902379.

Step 1:
The number 9 fits into 9 1 times, leaving a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 9 from 9 to get 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 9

On to step 2:
9 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 0 after subtracting 0 from 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 9

Moving on to step 3:
If we divide 2 by 9, we get 0 and a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 100.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 9

Step 4:
If we divide 23 by 9, we get 2 and a remainder of 5.
The next digit of our result is 2. 
Result so far: 1002.0
Subtracting 18 from 23 leaves us with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 9

Moving on to step 5:
If we divide 57 by 9, we get 6 and a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 10026.0
Subtracting 54 from 57 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 9

Moving on to step 6:
9 can be fit into 39 4 times, resulting in a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 100264.0
Subtracting 36 from 39 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
If we divide 30 by 9, we get 3 and a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 100264.3
Subtract 27 from 30 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 8:
9 can be fit into 30 3 times, resulting in a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 100264.33
If we subtract 27 from 30, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 100264.33, and the remainder is 0.003.