We're dividing 81415468 by 609 
The aim is to understand the frequency of 609 in 81415468.

Let's proceed to step 1:
The number 609 fits into 8 0 times, leaving a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 609

Let's proceed to step 2:
609 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Include the next digit (4) from the dividend after 81, then repeat: 814 / 609

Going ahead to step 3:
If we divide 814 by 609, we get 1 and a remainder of 205.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 609 from 814 and we're left with 205.
Bring next digit (1) of the dividend behind the 205 and repeat the process: 2051 / 609

Advancing to step 4:
If we divide 2051 by 609, we get 3 and a remainder of 224.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 1827 away from 2051, we end up with 224.
Fetch the next digit (5) from the dividend, attach it to 224 and continue: 2245 / 609

Advancing to step 5:
2245 divided by 609 is 3 with a remainder of 418.
Put 3 as the next digit of the answer. 
Result so far: 133.0
The remainder is 418 after subtracting 1827 from 2245.
Bring next digit (4) of the dividend behind the 418 and repeat the process: 4184 / 609

Let's proceed to step 6:
609 goes into 4184 6 times with a remainder of 530.
Write down 6 as next digit of the result. 
Result so far: 1336.0
Subtracting 3654 from 4184 leaves us with 530.
Append the next digit (6) from the dividend to 530 and continue with: 5306 / 609

Let's proceed to step 7:
If we divide 5306 by 609, we get 8 and a remainder of 434.
Put 8 as the next digit of the answer. 
Result so far: 13368.0
Deduct 4872 from 5306 and we're left with 434.
Fetch the next digit (8) from the dividend, attach it to 434 and continue: 4348 / 609

Advancing to step 8:
609 goes into 4348 7 times with a remainder of 85.
Use 7 as the next digit of our solution. 
Result so far: 133687.0
If we subtract 4263 from 4348, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 9:
850 divided by 609 is 1 with a remainder of 241.
The next digit of our result is 1. 
Result so far: 133687.1
The remainder is 241 after subtracting 609 from 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Step 10:
The number 609 fits into 2410 3 times, leaving a remainder of 583.
Record the quotient 3 as the next digit in the result. 
Result so far: 133687.13
The remainder is 583 after subtracting 1827 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5830, and continue the process.

On to step 11:
When dividing 5830 by 609, we get 9 with a remainder of 349.
The next digit of our result is 9. 
Result so far: 133687.139
Subtract 5481 from 5830 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Let's proceed to step 12:
609 can be fit into 3490 5 times, resulting in a remainder of 445.
The next digit of our result is 5. 
Result so far: 133687.1395
If we take 3045 away from 3490, we end up with 445.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4450, and continue the process.

Advancing to step 13:
4450 divided by 609 is 7 with a remainder of 187.
Record the quotient 7 as the next digit in the result. 
Result so far: 133687.13957
Subtracting 4263 from 4450 leaves us with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Advancing to step 14:
The number 609 fits into 1870 3 times, leaving a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 133687.139573
Deduct 1827 from 1870 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 15:
609 goes into 430 0 times with a remainder of 430.
The number 0 becomes the next digit in our result. 
Result so far: 133687.139573
Subtract 0 from 430 to get 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 16:
The number 609 fits into 4300 7 times, leaving a remainder of 37.
Put 7 as the next digit of the answer. 
Result so far: 133687.13957307
Subtract 4263 from 4300 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

In conclusion, the division gives 133687.13957307 with a balance of 3.7e-08.