18514786 ÷ 9 
The aim is to understand the frequency of 9 in 18514786.

On to step 1:
1 divided by 9 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 9

Going ahead to step 2:
9 can be fit into 18 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 18 from 18 leaves us with 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 9

Step 3:
9 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 20.0
If we subtract 0 from 5, we get 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 9

Step 4:
The number 9 fits into 51 5 times, leaving a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 205.0
Subtract 45 from 51 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 9

On to step 5:
9 goes into 64 7 times with a remainder of 1.
The next digit of our result is 7. 
Result so far: 2057.0
If we take 63 away from 64, we end up with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 9

Advancing to step 6:
When dividing 17 by 9, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 20571.0
The remainder is 8 after subtracting 9 from 17.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 9

Moving on to step 7:
When dividing 88 by 9, we get 9 with a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 205719.0
Subtracting 81 from 88 leaves us with 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 9

Advancing to step 8:
The number 9 fits into 76 8 times, leaving a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 2057198.0
Subtract 72 from 76 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.

Going ahead to step 9:
If we divide 40 by 9, we get 4 and a remainder of 4.
The next digit of our result is 4. 
Result so far: 2057198.4
If we take 36 away from 40, we end up 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 10:
9 can be fit into 40 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 2057198.44
Deduct 36 from 40 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.

The final result is 2057198.44 with a remainder of 0.004.