We're dividing 83572569 by 64 
The aim is to understand the frequency of 64 in 83572569.

Moving on to step 1:
8 divided by 64 is 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.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 64

Advancing to step 2:
64 can be fit into 83 1 times, resulting in a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 64 from 83 leaves us with 19.
Bring next digit (5) of the dividend behind the 19 and repeat the process: 195 / 64

Let's proceed to step 3:
If we divide 195 by 64, we get 3 and a remainder of 3.
The next digit of our result is 3. 
Result so far: 13.0
If we take 192 away from 195, we end up with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 64

On to step 4:
64 can be fit into 37 0 times, resulting in a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 130.0
If we subtract 0 from 37, we get 37.
Append the next digit (2) from the dividend to 37 and continue with: 372 / 64

Moving on to step 5:
372 divided by 64 is 5 with a remainder of 52.
The next digit of our result is 5. 
Result so far: 1305.0
Subtracting 320 from 372 leaves us with 52.
Append the next digit (5) from the dividend to 52 and continue with: 525 / 64

Moving on to step 6:
64 can be fit into 525 8 times, resulting in a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 13058.0
Subtract 512 from 525 to get 13.
Fetch the next digit (6) from the dividend, attach it to 13 and continue: 136 / 64

Going ahead to step 7:
64 goes into 136 2 times with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 130582.0
The remainder is 8 after subtracting 128 from 136.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 64

Step 8:
64 can be fit into 89 1 times, resulting in a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1305821.0
If we take 64 away from 89, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 9:
When dividing 250 by 64, we get 3 with a remainder of 58.
The next digit of our result is 3. 
Result so far: 1305821.3
Subtract 192 from 250 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
If we divide 580 by 64, we get 9 and a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 1305821.39
The remainder is 4 after subtracting 576 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 11:
64 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1305821.39
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
If we divide 400 by 64, we get 6 and a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 1305821.3906
Deduct 384 from 400 and we're left 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 13:
If we divide 160 by 64, we get 2 and a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 1305821.39062
If we subtract 128 from 160, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 14:
320 divided by 64 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 1305821.390625
The remainder is 0 after subtracting 320 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 15:
0 divided by 64 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1305821.390625
Subtract 0 from 0 to get 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 16:
0 divided by 64 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1305821.390625
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.

The final result is 1305821.390625 with a remainder of 0.0.