We look at the division of 34637629 by 9 
The aim is to understand the frequency of 9 in 34637629.

Advancing to step 1:
When dividing 3 by 9, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 9

Moving on to step 2:
The number 9 fits into 34 3 times, leaving a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
The remainder is 7 after subtracting 27 from 34.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 9

Moving on to step 3:
76 divided by 9 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 38.0
Deduct 72 from 76 and we're left with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 9

On to step 4:
The number 9 fits into 43 4 times, leaving a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 384.0
If we take 36 away from 43, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 9

On to step 5:
When dividing 77 by 9, we get 8 with a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 3848.0
Deduct 72 from 77 and we're left with 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 9

Step 6:
When dividing 56 by 9, we get 6 with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 38486.0
Subtract 54 from 56 to get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 9

Step 7:
9 can be fit into 22 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 384862.0
Subtracting 18 from 22 leaves us with 4.
Append the next digit (9) from the dividend to 4 and continue with: 49 / 9

Step 8:
9 can be fit into 49 5 times, resulting in a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 3848625.0
Deduct 45 from 49 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 9:
9 can be fit into 40 4 times, resulting in a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 3848625.4
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
The number 9 fits into 40 4 times, leaving a remainder of 4.
The next digit of our result is 4. 
Result so far: 3848625.44
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 3848625.44, with a leftover of 0.004.