601830 divided by 9 
The aim is to understand the frequency of 9 in 601830.

Moving on to step 1:
If we divide 6 by 9, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 9

Moving on to step 2:
9 goes into 60 6 times with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we subtract 54 from 60, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 9

Moving on to step 3:
The number 9 fits into 61 6 times, leaving a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 66.0
If we subtract 54 from 61, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 9

Advancing to step 4:
9 goes into 78 8 times with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 668.0
Subtract 72 from 78 to get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 9

Advancing to step 5:
9 can be fit into 63 7 times, resulting in a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 6687.0
Subtract 63 from 63 to get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 9

Going ahead to step 6:
0 divided by 9 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 66870.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 7:
The number 9 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 66870.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
The number 9 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 66870.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 66870.0, with a leftover of 0.0.