64238208 ÷ 964 
The aim is to understand the frequency of 964 in 64238208.

Step 1:
964 goes into 6 0 times with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 964

Going ahead to step 2:
When dividing 64 by 964, we get 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Append the next digit (2) from the dividend to 64 and continue with: 642 / 964

Going ahead to step 3:
The number 964 fits into 642 0 times, leaving a remainder of 642.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 642, we end up with 642.
Fetch the next digit (3) from the dividend, attach it to 642 and continue: 6423 / 964

Step 4:
The number 964 fits into 6423 6 times, leaving a remainder of 639.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 5784 from 6423 and we're left with 639.
Grab the next digit (8) from the dividend, add it to 639, then carry on: 6398 / 964

Going ahead to step 5:
When dividing 6398 by 964, we get 6 with a remainder of 614.
Put 6 as the next digit of the answer. 
Result so far: 66.0
Deduct 5784 from 6398 and we're left with 614.
Take the next digit (2) from the dividend and append it to 614, then repeat: 6142 / 964

On to step 6:
If we divide 6142 by 964, we get 6 and a remainder of 358.
The number 6 becomes the next digit in our result. 
Result so far: 666.0
Deduct 5784 from 6142 and we're left with 358.
Grab the next digit (0) from the dividend, add it to 358, then carry on: 3580 / 964

Step 7:
3580 divided by 964 is 3 with a remainder of 688.
Write down 3 as next digit of the result. 
Result so far: 6663.0
If we subtract 2892 from 3580, we get 688.
Include the next digit (8) from the dividend after 688, then repeat: 6888 / 964

On to step 8:
When dividing 6888 by 964, we get 7 with a remainder of 140.
Record the quotient 7 as the next digit in the result. 
Result so far: 66637.0
If we subtract 6748 from 6888, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 9:
1400 divided by 964 is 1 with a remainder of 436.
The number 1 becomes the next digit in our result. 
Result so far: 66637.1
If we take 964 away from 1400, we end up with 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Advancing to step 10:
4360 divided by 964 is 4 with a remainder of 504.
Record the quotient 4 as the next digit in the result. 
Result so far: 66637.14
Deduct 3856 from 4360 and we're left with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Going ahead to step 11:
5040 divided by 964 is 5 with a remainder of 220.
The next digit of our result is 5. 
Result so far: 66637.145
If we take 4820 away from 5040, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Let's proceed to step 12:
964 goes into 2200 2 times with a remainder of 272.
The next digit of our result is 2. 
Result so far: 66637.1452
If we take 1928 away from 2200, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 13:
964 can be fit into 2720 2 times, resulting in a remainder of 792.
The next digit of our result is 2. 
Result so far: 66637.14522
Subtracting 1928 from 2720 leaves us with 792.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7920, and continue the process.

The final outcome is 66637.14522, with a leftover of 0.000792.