Let's divide 81068590 by 609
The aim is to understand the frequency of 609 in 81068590.

Moving on to step 1:
When dividing 8 by 609, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 609

Step 2:
609 can be fit into 81 0 times, resulting in a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Grab the next digit (0) from the dividend, add it to 81, then carry on: 810 / 609

Step 3:
If we divide 810 by 609, we get 1 and a remainder of 201.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 609 from 810 and we're left with 201.
Append the next digit (6) from the dividend to 201 and continue with: 2016 / 609

Step 4:
2016 divided by 609 is 3 with a remainder of 189.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 1827 from 2016 leaves us with 189.
Bring next digit (8) of the dividend behind the 189 and repeat the process: 1898 / 609

On to step 5:
The number 609 fits into 1898 3 times, leaving a remainder of 71.
Put 3 as the next digit of the answer. 
Result so far: 133.0
Deduct 1827 from 1898 and we're left with 71.
Include the next digit (5) from the dividend after 71, then repeat: 715 / 609

Step 6:
609 goes into 715 1 times with a remainder of 106.
Use 1 as the next digit of our solution. 
Result so far: 1331.0
If we take 609 away from 715, we end up with 106.
Fetch the next digit (9) from the dividend, attach it to 106 and continue: 1069 / 609

On to step 7:
1069 divided by 609 is 1 with a remainder of 460.
Put 1 as the next digit of the answer. 
Result so far: 13311.0
Subtracting 609 from 1069 leaves us with 460.
Fetch the next digit (0) from the dividend, attach it to 460 and continue: 4600 / 609

Let's proceed to step 8:
4600 divided by 609 is 7 with a remainder of 337.
Use 7 as the next digit of our solution. 
Result so far: 133117.0
Subtracting 4263 from 4600 leaves us with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Moving on to step 9:
The number 609 fits into 3370 5 times, leaving a remainder of 325.
Put 5 as the next digit of the answer. 
Result so far: 133117.5
Deduct 3045 from 3370 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Advancing to step 10:
609 goes into 3250 5 times with a remainder of 205.
Record the quotient 5 as the next digit in the result. 
Result so far: 133117.55
If we take 3045 away from 3250, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

In conclusion, the division gives 133117.55 with a balance of 0.205.