We look at the division of 34214618 by 809 
The aim is to understand the frequency of 809 in 34214618.

On to step 1:
The number 809 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 809

Let's proceed to step 2:
When dividing 34 by 809, we get 0 with a remainder of 34.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 34, we get 34.
Bring next digit (2) of the dividend behind the 34 and repeat the process: 342 / 809

Moving on to step 3:
If we divide 342 by 809, we get 0 and a remainder of 342.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 342 to get 342.
Append the next digit (1) from the dividend to 342 and continue with: 3421 / 809

Step 4:
809 can be fit into 3421 4 times, resulting in a remainder of 185.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 3236 from 3421, we get 185.
Bring next digit (4) of the dividend behind the 185 and repeat the process: 1854 / 809

On to step 5:
809 can be fit into 1854 2 times, resulting in a remainder of 236.
The number 2 becomes the next digit in our result. 
Result so far: 42.0
Subtract 1618 from 1854 to get 236.
Include the next digit (6) from the dividend after 236, then repeat: 2366 / 809

On to step 6:
809 goes into 2366 2 times with a remainder of 748.
Use 2 as the next digit of our solution. 
Result so far: 422.0
Subtract 1618 from 2366 to get 748.
Fetch the next digit (1) from the dividend, attach it to 748 and continue: 7481 / 809

Moving on to step 7:
809 can be fit into 7481 9 times, resulting in a remainder of 200.
Record the quotient 9 as the next digit in the result. 
Result so far: 4229.0
Deduct 7281 from 7481 and we're left with 200.
Grab the next digit (8) from the dividend, add it to 200, then carry on: 2008 / 809

Let's proceed to step 8:
2008 divided by 809 is 2 with a remainder of 390.
Write down 2 as next digit of the result. 
Result so far: 42292.0
If we take 1618 away from 2008, we end up with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 9:
The number 809 fits into 3900 4 times, leaving a remainder of 664.
The next digit of our result is 4. 
Result so far: 42292.4
Subtract 3236 from 3900 to get 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

On to step 10:
If we divide 6640 by 809, we get 8 and a remainder of 168.
Put 8 as the next digit of the answer. 
Result so far: 42292.48
If we subtract 6472 from 6640, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 11:
809 goes into 1680 2 times with a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 42292.482
The remainder is 62 after subtracting 1618 from 1680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Advancing to step 12:
When dividing 620 by 809, we get 0 with a remainder of 620.
Put 0 as the next digit of the answer. 
Result so far: 42292.482
The remainder is 620 after subtracting 0 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Step 13:
809 goes into 6200 7 times with a remainder of 537.
The number 7 becomes the next digit in our result. 
Result so far: 42292.48207
Subtract 5663 from 6200 to get 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Advancing to step 14:
809 can be fit into 5370 6 times, resulting in a remainder of 516.
Put 6 as the next digit of the answer. 
Result so far: 42292.482076
If we take 4854 away from 5370, we end up with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

On to step 15:
The number 809 fits into 5160 6 times, leaving a remainder of 306.
The next digit of our result is 6. 
Result so far: 42292.4820766
If we subtract 4854 from 5160, we get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

The final result is 42292.4820766 with a remainder of 3.06e-06.