We look at the division of 90292792 by 64 
The aim is to understand the frequency of 64 in 90292792.

On to step 1:
When dividing 9 by 64, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 64

Going ahead to step 2:
90 divided by 64 is 1 with a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 64 away from 90, we end up with 26.
Grab the next digit (2) from the dividend, add it to 26, then carry on: 262 / 64

Going ahead to step 3:
If we divide 262 by 64, we get 4 and a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 256 away from 262, we end up with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 64

Going ahead to step 4:
64 can be fit into 69 1 times, resulting in a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 141.0
Deduct 64 from 69 and we're left with 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 64

Advancing to step 5:
The number 64 fits into 52 0 times, leaving a remainder of 52.
Use 0 as the next digit of our solution. 
Result so far: 1410.0
Subtract 0 from 52 to get 52.
Grab the next digit (7) from the dividend, add it to 52, then carry on: 527 / 64

Going ahead to step 6:
If we divide 527 by 64, we get 8 and a remainder of 15.
Record the quotient 8 as the next digit in the result. 
Result so far: 14108.0
The remainder is 15 after subtracting 512 from 527.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 64

Step 7:
64 can be fit into 159 2 times, resulting in a remainder of 31.
The number 2 becomes the next digit in our result. 
Result so far: 141082.0
If we take 128 away from 159, we end up with 31.
Bring next digit (2) of the dividend behind the 31 and repeat the process: 312 / 64

Advancing to step 8:
312 divided by 64 is 4 with a remainder of 56.
The next digit of our result is 4. 
Result so far: 1410824.0
If we take 256 away from 312, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
64 goes into 560 8 times with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 1410824.8
The remainder is 48 after subtracting 512 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 10:
If we divide 480 by 64, we get 7 and a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 1410824.87
The remainder is 32 after subtracting 448 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 11:
64 can be fit into 320 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1410824.875
Subtracting 320 from 320 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.

Let's proceed to step 12:
64 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1410824.875
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.

Advancing to step 13:
64 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1410824.875
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.

After the division, we end up with 1410824.875 and a remainder of 0.0.