64575631 divided by 76 
The aim is to understand the frequency of 76 in 64575631.

Let's proceed to step 1:
76 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 76

Going ahead to step 2:
76 goes into 64 0 times with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Bring next digit (5) of the dividend behind the 64 and repeat the process: 645 / 76

On to step 3:
645 divided by 76 is 8 with a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 608 from 645 to get 37.
Append the next digit (7) from the dividend to 37 and continue with: 377 / 76

Step 4:
The number 76 fits into 377 4 times, leaving a remainder of 73.
The number 4 becomes the next digit in our result. 
Result so far: 84.0
Subtracting 304 from 377 leaves us with 73.
Include the next digit (5) from the dividend after 73, then repeat: 735 / 76

Step 5:
76 can be fit into 735 9 times, resulting in a remainder of 51.
Write down 9 as next digit of the result. 
Result so far: 849.0
Deduct 684 from 735 and we're left with 51.
Take the next digit (6) from the dividend and append it to 51, then repeat: 516 / 76

Moving on to step 6:
If we divide 516 by 76, we get 6 and a remainder of 60.
The next digit of our result is 6. 
Result so far: 8496.0
If we subtract 456 from 516, we get 60.
Fetch the next digit (3) from the dividend, attach it to 60 and continue: 603 / 76

Going ahead to step 7:
When dividing 603 by 76, we get 7 with a remainder of 71.
Use 7 as the next digit of our solution. 
Result so far: 84967.0
The remainder is 71 after subtracting 532 from 603.
Append the next digit (1) from the dividend to 71 and continue with: 711 / 76

On to step 8:
711 divided by 76 is 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 849679.0
If we subtract 684 from 711, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
270 divided by 76 is 3 with a remainder of 42.
The next digit of our result is 3. 
Result so far: 849679.3
If we subtract 228 from 270, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 10:
420 divided by 76 is 5 with a remainder of 40.
Put 5 as the next digit of the answer. 
Result so far: 849679.35
If we subtract 380 from 420, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 11:
76 goes into 400 5 times with a remainder of 20.
Write down 5 as next digit of the result. 
Result so far: 849679.355
Subtract 380 from 400 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 849679.355, and the remainder is 0.002.