12684333 ÷ 809 
The aim is to understand the frequency of 809 in 12684333.

Moving on to step 1:
If we divide 1 by 809, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 809

Let's proceed to step 2:
The number 809 fits into 12 0 times, leaving a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 809

Let's proceed to step 3:
The number 809 fits into 126 0 times, leaving a remainder of 126.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 126, we get 126.
Take the next digit (8) from the dividend and append it to 126, then repeat: 1268 / 809

Advancing to step 4:
809 can be fit into 1268 1 times, resulting in a remainder of 459.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 459 after subtracting 809 from 1268.
Append the next digit (4) from the dividend to 459 and continue with: 4594 / 809

Moving on to step 5:
809 can be fit into 4594 5 times, resulting in a remainder of 549.
The next digit of our result is 5. 
Result so far: 15.0
Subtracting 4045 from 4594 leaves us with 549.
Bring next digit (3) of the dividend behind the 549 and repeat the process: 5493 / 809

On to step 6:
5493 divided by 809 is 6 with a remainder of 639.
Record the quotient 6 as the next digit in the result. 
Result so far: 156.0
Deduct 4854 from 5493 and we're left with 639.
Take the next digit (3) from the dividend and append it to 639, then repeat: 6393 / 809

Advancing to step 7:
809 can be fit into 6393 7 times, resulting in a remainder of 730.
Put 7 as the next digit of the answer. 
Result so far: 1567.0
Subtracting 5663 from 6393 leaves us with 730.
Include the next digit (3) from the dividend after 730, then repeat: 7303 / 809

Moving on to step 8:
If we divide 7303 by 809, we get 9 and a remainder of 22.
Record the quotient 9 as the next digit in the result. 
Result so far: 15679.0
If we subtract 7281 from 7303, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 9:
The number 809 fits into 220 0 times, leaving a remainder of 220.
Write down 0 as next digit of the result. 
Result so far: 15679.0
Subtract 0 from 220 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 10:
The number 809 fits into 2200 2 times, leaving a remainder of 582.
Write down 2 as next digit of the result. 
Result so far: 15679.02
Deduct 1618 from 2200 and we're left with 582.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5820, and continue the process.

Step 11:
5820 divided by 809 is 7 with a remainder of 157.
The next digit of our result is 7. 
Result so far: 15679.027
Subtracting 5663 from 5820 leaves us with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Step 12:
The number 809 fits into 1570 1 times, leaving a remainder of 761.
The number 1 becomes the next digit in our result. 
Result so far: 15679.0271
If we take 809 away from 1570, we end up with 761.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7610, and continue the process.

On to step 13:
When dividing 7610 by 809, we get 9 with a remainder of 329.
The number 9 becomes the next digit in our result. 
Result so far: 15679.02719
If we subtract 7281 from 7610, we get 329.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3290, and continue the process.

Going ahead to step 14:
The number 809 fits into 3290 4 times, leaving a remainder of 54.
Record the quotient 4 as the next digit in the result. 
Result so far: 15679.027194
Subtracting 3236 from 3290 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 15:
The number 809 fits into 540 0 times, leaving a remainder of 540.
The next digit of our result is 0. 
Result so far: 15679.027194
If we subtract 0 from 540, we get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Advancing to step 16:
The number 809 fits into 5400 6 times, leaving a remainder of 546.
Record the quotient 6 as the next digit in the result. 
Result so far: 15679.02719406
If we subtract 4854 from 5400, we get 546.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5460, and continue the process.

The final outcome is 15679.02719406, with a leftover of 5.46e-07.