We look at the division of 810005 by 64 
The aim is to understand the frequency of 64 in 810005.

Advancing to step 1:
When dividing 8 by 64, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 64

Step 2:
64 can be fit into 81 1 times, resulting in a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 64 from 81 leaves us with 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 64

Moving on to step 3:
If we divide 170 by 64, we get 2 and a remainder of 42.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 42 after subtracting 128 from 170.
Bring next digit (0) of the dividend behind the 42 and repeat the process: 420 / 64

On to step 4:
The number 64 fits into 420 6 times, leaving a remainder of 36.
Put 6 as the next digit of the answer. 
Result so far: 126.0
Subtract 384 from 420 to get 36.
Grab the next digit (0) from the dividend, add it to 36, then carry on: 360 / 64

Advancing to step 5:
360 divided by 64 is 5 with a remainder of 40.
Use 5 as the next digit of our solution. 
Result so far: 1265.0
Deduct 320 from 360 and we're left with 40.
Append the next digit (5) from the dividend to 40 and continue with: 405 / 64

Let's proceed to step 6:
64 can be fit into 405 6 times, resulting in a remainder of 21.
Record the quotient 6 as the next digit in the result. 
Result so far: 12656.0
Subtract 384 from 405 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 7:
64 can be fit into 210 3 times, resulting in a remainder of 18.
The number 3 becomes the next digit in our result. 
Result so far: 12656.3
If we subtract 192 from 210, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
When dividing 180 by 64, we get 2 with a remainder of 52.
Use 2 as the next digit of our solution. 
Result so far: 12656.32
The remainder is 52 after subtracting 128 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 9:
64 goes into 520 8 times with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 12656.328
Deduct 512 from 520 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
When dividing 80 by 64, we get 1 with a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 12656.3281
Subtracting 64 from 80 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
When dividing 160 by 64, we get 2 with a remainder of 32.
The number 2 becomes the next digit in our result. 
Result so far: 12656.32812
The remainder is 32 after subtracting 128 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
If we divide 320 by 64, we get 5 and a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 12656.328125
If we take 320 away from 320, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 13:
0 divided by 64 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 12656.328125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 14:
When dividing 0 by 64, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12656.328125
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 12656.328125 and a remainder of 0.0.