We're dividing 381631 by 64 
The aim is to understand the frequency of 64 in 381631.

Let's proceed to step 1:
64 goes into 3 0 times with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 64

Moving on to step 2:
64 goes into 38 0 times with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Fetch the next digit (1) from the dividend, attach it to 38 and continue: 381 / 64

Going ahead to step 3:
64 goes into 381 5 times with a remainder of 61.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 320 from 381 leaves us with 61.
Take the next digit (6) from the dividend and append it to 61, then repeat: 616 / 64

Let's proceed to step 4:
If we divide 616 by 64, we get 9 and a remainder of 40.
Record the quotient 9 as the next digit in the result. 
Result so far: 59.0
If we take 576 away from 616, we end up with 40.
Append the next digit (3) from the dividend to 40 and continue with: 403 / 64

Going ahead to step 5:
When dividing 403 by 64, we get 6 with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 596.0
Subtract 384 from 403 to get 19.
Include the next digit (1) from the dividend after 19, then repeat: 191 / 64

Going ahead to step 6:
64 goes into 191 2 times with a remainder of 63.
Record the quotient 2 as the next digit in the result. 
Result so far: 5962.0
Subtract 128 from 191 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 7:
When dividing 630 by 64, we get 9 with a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 5962.9
If we subtract 576 from 630, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

On to step 8:
64 can be fit into 540 8 times, resulting in a remainder of 28.
The next digit of our result is 8. 
Result so far: 5962.98
Subtract 512 from 540 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
64 can be fit into 280 4 times, resulting in a remainder of 24.
Use 4 as the next digit of our solution. 
Result so far: 5962.984
If we subtract 256 from 280, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 10:
The number 64 fits into 240 3 times, leaving a remainder of 48.
The next digit of our result is 3. 
Result so far: 5962.9843
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 11:
64 goes into 480 7 times with a remainder of 32.
Put 7 as the next digit of the answer. 
Result so far: 5962.98437
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.

On to step 12:
64 can be fit into 320 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 5962.984375
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.

Moving on to step 13:
64 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 5962.984375
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.

Moving on to step 14:
64 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5962.984375
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 5962.984375 with a remaining 0.0.