641372 ÷ 64 
The aim is to understand the frequency of 64 in 641372.

Let's proceed to step 1:
6 divided by 64 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 64

Let's proceed to step 2:
The number 64 fits into 64 1 times, leaving a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 64 from 64 leaves us with 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 64

Let's proceed to step 3:
If we divide 1 by 64, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 64

Advancing to step 4:
64 can be fit into 13 0 times, resulting in a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
Subtracting 0 from 13 leaves us with 13.
Bring next digit (7) of the dividend behind the 13 and repeat the process: 137 / 64

Going ahead to step 5:
64 goes into 137 2 times with a remainder of 9.
Use 2 as the next digit of our solution. 
Result so far: 1002.0
Subtracting 128 from 137 leaves us with 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 64

On to step 6:
64 goes into 92 1 times with a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 10021.0
If we take 64 away from 92, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
The number 64 fits into 280 4 times, leaving a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 10021.4
The remainder is 24 after subtracting 256 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 8:
240 divided by 64 is 3 with a remainder of 48.
The next digit of our result is 3. 
Result so far: 10021.43
If we subtract 192 from 240, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 9:
64 goes into 480 7 times with a remainder of 32.
The next digit of our result is 7. 
Result so far: 10021.437
Subtract 448 from 480 to 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.

Step 10:
When dividing 320 by 64, we get 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 10021.4375
If we subtract 320 from 320, 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.

Step 11:
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: 10021.4375
Deduct 0 from 0 and we're left 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 12:
64 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10021.4375
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.

Our division results in 10021.4375 with a remaining 0.0.