We're dividing 51014525 by 664 
The aim is to understand the frequency of 664 in 51014525.

Moving on to step 1:
664 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 664

On to step 2:
664 can be fit into 51 0 times, resulting in a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Fetch the next digit (0) from the dividend, attach it to 51 and continue: 510 / 664

Moving on to step 3:
664 goes into 510 0 times with a remainder of 510.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 510 to get 510.
Grab the next digit (1) from the dividend, add it to 510, then carry on: 5101 / 664

Step 4:
If we divide 5101 by 664, we get 7 and a remainder of 453.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 4648 from 5101 to get 453.
Grab the next digit (4) from the dividend, add it to 453, then carry on: 4534 / 664

Let's proceed to step 5:
4534 divided by 664 is 6 with a remainder of 550.
The next digit of our result is 6. 
Result so far: 76.0
If we take 3984 away from 4534, we end up with 550.
Append the next digit (5) from the dividend to 550 and continue with: 5505 / 664

Moving on to step 6:
The number 664 fits into 5505 8 times, leaving a remainder of 193.
Record the quotient 8 as the next digit in the result. 
Result so far: 768.0
Deduct 5312 from 5505 and we're left with 193.
Bring next digit (2) of the dividend behind the 193 and repeat the process: 1932 / 664

On to step 7:
The number 664 fits into 1932 2 times, leaving a remainder of 604.
The number 2 becomes the next digit in our result. 
Result so far: 7682.0
Subtracting 1328 from 1932 leaves us with 604.
Include the next digit (5) from the dividend after 604, then repeat: 6045 / 664

Going ahead to step 8:
6045 divided by 664 is 9 with a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 76829.0
The remainder is 69 after subtracting 5976 from 6045.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Going ahead to step 9:
690 divided by 664 is 1 with a remainder of 26.
The next digit of our result is 1. 
Result so far: 76829.1
Deduct 664 from 690 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 10:
260 divided by 664 is 0 with a remainder of 260.
Use 0 as the next digit of our solution. 
Result so far: 76829.1
Deduct 0 from 260 and we're left with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 11:
If we divide 2600 by 664, we get 3 and a remainder of 608.
Use 3 as the next digit of our solution. 
Result so far: 76829.103
If we take 1992 away from 2600, we end up with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Going ahead to step 12:
If we divide 6080 by 664, we get 9 and a remainder of 104.
The next digit of our result is 9. 
Result so far: 76829.1039
The remainder is 104 after subtracting 5976 from 6080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 13:
664 goes into 1040 1 times with a remainder of 376.
The number 1 becomes the next digit in our result. 
Result so far: 76829.10391
If we subtract 664 from 1040, we get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Advancing to step 14:
When dividing 3760 by 664, we get 5 with a remainder of 440.
The next digit of our result is 5. 
Result so far: 76829.103915
Subtracting 3320 from 3760 leaves us with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 15:
When dividing 4400 by 664, we get 6 with a remainder of 416.
Use 6 as the next digit of our solution. 
Result so far: 76829.1039156
Subtracting 3984 from 4400 leaves us with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Let's proceed to step 16:
4160 divided by 664 is 6 with a remainder of 176.
Use 6 as the next digit of our solution. 
Result so far: 76829.10391566
The remainder is 176 after subtracting 3984 from 4160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

The final outcome is 76829.10391566, with a leftover of 1.76e-07.