We look at the division of 33554554 by 309 
The aim is to understand the frequency of 309 in 33554554.

On to step 1:
3 divided by 309 is 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 309

Let's proceed to step 2:
309 can be fit into 33 0 times, resulting in a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Append the next digit (5) from the dividend to 33 and continue with: 335 / 309

Advancing to step 3:
309 can be fit into 335 1 times, resulting in a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 309 from 335 and we're left with 26.
Append the next digit (5) from the dividend to 26 and continue with: 265 / 309

Advancing to step 4:
The number 309 fits into 265 0 times, leaving a remainder of 265.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 265 leaves us with 265.
Bring next digit (4) of the dividend behind the 265 and repeat the process: 2654 / 309

Going ahead to step 5:
309 can be fit into 2654 8 times, resulting in a remainder of 182.
Use 8 as the next digit of our solution. 
Result so far: 108.0
Subtracting 2472 from 2654 leaves us with 182.
Take the next digit (5) from the dividend and append it to 182, then repeat: 1825 / 309

Moving on to step 6:
309 goes into 1825 5 times with a remainder of 280.
Record the quotient 5 as the next digit in the result. 
Result so far: 1085.0
Subtract 1545 from 1825 to get 280.
Bring next digit (5) of the dividend behind the 280 and repeat the process: 2805 / 309

Going ahead to step 7:
If we divide 2805 by 309, we get 9 and a remainder of 24.
The number 9 becomes the next digit in our result. 
Result so far: 10859.0
Subtract 2781 from 2805 to get 24.
Append the next digit (4) from the dividend to 24 and continue with: 244 / 309

Going ahead to step 8:
The number 309 fits into 244 0 times, leaving a remainder of 244.
Put 0 as the next digit of the answer. 
Result so far: 108590.0
If we take 0 away from 244, we end up with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Let's proceed to step 9:
The number 309 fits into 2440 7 times, leaving a remainder of 277.
Record the quotient 7 as the next digit in the result. 
Result so far: 108590.7
If we subtract 2163 from 2440, we get 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

On to step 10:
The number 309 fits into 2770 8 times, leaving a remainder of 298.
The next digit of our result is 8. 
Result so far: 108590.78
Subtract 2472 from 2770 to get 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

Advancing to step 11:
309 can be fit into 2980 9 times, resulting in a remainder of 199.
Put 9 as the next digit of the answer. 
Result so far: 108590.789
If we subtract 2781 from 2980, we get 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Moving on to step 12:
309 goes into 1990 6 times with a remainder of 136.
Put 6 as the next digit of the answer. 
Result so far: 108590.7896
If we subtract 1854 from 1990, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 13:
The number 309 fits into 1360 4 times, leaving a remainder of 124.
Use 4 as the next digit of our solution. 
Result so far: 108590.78964
If we subtract 1236 from 1360, we get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 14:
309 can be fit into 1240 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 108590.789644
Subtract 1236 from 1240 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.

After the division, we end up with 108590.789644 and a remainder of 4e-07.