We're dividing 869943 by 64 
The aim is to understand the frequency of 64 in 869943.

Advancing to step 1:
If we divide 8 by 64, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 64

Going ahead to step 2:
If we divide 86 by 64, we get 1 and a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 22 after subtracting 64 from 86.
Grab the next digit (9) from the dividend, add it to 22, then carry on: 229 / 64

Step 3:
229 divided by 64 is 3 with a remainder of 37.
The next digit of our result is 3. 
Result so far: 13.0
If we take 192 away from 229, we end up with 37.
Append the next digit (9) from the dividend to 37 and continue with: 379 / 64

Going ahead to step 4:
When dividing 379 by 64, we get 5 with a remainder of 59.
Record the quotient 5 as the next digit in the result. 
Result so far: 135.0
If we take 320 away from 379, we end up with 59.
Fetch the next digit (4) from the dividend, attach it to 59 and continue: 594 / 64

On to step 5:
64 can be fit into 594 9 times, resulting in a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 1359.0
If we subtract 576 from 594, we get 18.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 64

Let's proceed to step 6:
If we divide 183 by 64, we get 2 and a remainder of 55.
The next digit of our result is 2. 
Result so far: 13592.0
The remainder is 55 after subtracting 128 from 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 7:
550 divided by 64 is 8 with a remainder of 38.
The next digit of our result is 8. 
Result so far: 13592.8
Deduct 512 from 550 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 8:
The number 64 fits into 380 5 times, leaving a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 13592.85
The remainder is 60 after subtracting 320 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 9:
When dividing 600 by 64, we get 9 with a remainder of 24.
Record the quotient 9 as the next digit in the result. 
Result so far: 13592.859
If we take 576 away from 600, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
64 can be fit into 240 3 times, resulting in a remainder of 48.
The number 3 becomes the next digit in our result. 
Result so far: 13592.8593
Deduct 192 from 240 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 11:
If we divide 480 by 64, we get 7 and a remainder of 32.
Use 7 as the next digit of our solution. 
Result so far: 13592.85937
If we take 448 away from 480, we end up with 32.
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 12:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 13592.859375
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.

Step 13:
If we divide 0 by 64, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 13592.859375
If we subtract 0 from 0, we 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.

Moving on to step 14:
When dividing 0 by 64, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 13592.859375
If we subtract 0 from 0, we 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.

In conclusion, the division gives 13592.859375 with a balance of 0.0.