We're dividing 65659226 by 810 
The aim is to understand the frequency of 810 in 65659226.

Step 1:
6 divided by 810 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 810

Going ahead to step 2:
810 goes into 65 0 times with a remainder of 65.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 65, we end up with 65.
Grab the next digit (6) from the dividend, add it to 65, then carry on: 656 / 810

Let's proceed to step 3:
810 goes into 656 0 times with a remainder of 656.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 656, we end up with 656.
Fetch the next digit (5) from the dividend, attach it to 656 and continue: 6565 / 810

Step 4:
810 can be fit into 6565 8 times, resulting in a remainder of 85.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 6480 from 6565, we get 85.
Fetch the next digit (9) from the dividend, attach it to 85 and continue: 859 / 810

Moving on to step 5:
810 can be fit into 859 1 times, resulting in a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 81.0
If we take 810 away from 859, we end up with 49.
Include the next digit (2) from the dividend after 49, then repeat: 492 / 810

Advancing to step 6:
810 can be fit into 492 0 times, resulting in a remainder of 492.
Use 0 as the next digit of our solution. 
Result so far: 810.0
Subtract 0 from 492 to get 492.
Fetch the next digit (2) from the dividend, attach it to 492 and continue: 4922 / 810

Step 7:
If we divide 4922 by 810, we get 6 and a remainder of 62.
The number 6 becomes the next digit in our result. 
Result so far: 8106.0
Subtract 4860 from 4922 to get 62.
Grab the next digit (6) from the dividend, add it to 62, then carry on: 626 / 810

Step 8:
If we divide 626 by 810, we get 0 and a remainder of 626.
Use 0 as the next digit of our solution. 
Result so far: 81060.0
Subtracting 0 from 626 leaves us with 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

Moving on to step 9:
810 can be fit into 6260 7 times, resulting in a remainder of 590.
The number 7 becomes the next digit in our result. 
Result so far: 81060.7
If we subtract 5670 from 6260, we get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Let's proceed to step 10:
When dividing 5900 by 810, we get 7 with a remainder of 230.
The number 7 becomes the next digit in our result. 
Result so far: 81060.77
Deduct 5670 from 5900 and we're left with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

The final outcome is 81060.77, with a leftover of 0.23.