We look at the division of 635841 by 9 
The aim is to understand the frequency of 9 in 635841.

Going ahead 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
If we take 0 away from 6, we end up with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 9

Advancing to step 2:
If we divide 63 by 9, we get 7 and a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 63 from 63 to get 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 9

Moving on to step 3:
The number 9 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 9

Moving on to step 4:
9 can be fit into 58 6 times, resulting in a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 706.0
If we subtract 54 from 58, we get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 9

Let's proceed to step 5:
9 can be fit into 44 4 times, resulting in a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 7064.0
If we take 36 away from 44, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 9

Moving on to step 6:
The number 9 fits into 81 9 times, leaving a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 70649.0
Subtracting 81 from 81 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.

On to step 7:
The number 9 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 70649.0
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.

Moving on to step 8:
9 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 70649.0
If we take 0 away from 0, we end up 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 result is 70649.0 with a remainder of 0.0.