Let's divide 664321 by 69
The aim is to understand the frequency of 69 in 664321.

On to step 1:
When dividing 6 by 69, we get 0 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.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 69

Moving on to step 2:
69 goes into 66 0 times with a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Grab the next digit (4) from the dividend, add it to 66, then carry on: 664 / 69

Step 3:
69 can be fit into 664 9 times, resulting in a remainder of 43.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 621 from 664 and we're left with 43.
Bring next digit (3) of the dividend behind the 43 and repeat the process: 433 / 69

Let's proceed to step 4:
If we divide 433 by 69, we get 6 and a remainder of 19.
Record the quotient 6 as the next digit in the result. 
Result so far: 96.0
The remainder is 19 after subtracting 414 from 433.
Grab the next digit (2) from the dividend, add it to 19, then carry on: 192 / 69

Moving on to step 5:
If we divide 192 by 69, we get 2 and a remainder of 54.
Use 2 as the next digit of our solution. 
Result so far: 962.0
Subtracting 138 from 192 leaves us with 54.
Fetch the next digit (1) from the dividend, attach it to 54 and continue: 541 / 69

Going ahead to step 6:
When dividing 541 by 69, we get 7 with a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 9627.0
The remainder is 58 after subtracting 483 from 541.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 7:
69 can be fit into 580 8 times, resulting in a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 9627.8
If we take 552 away from 580, 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.

Step 8:
If we divide 280 by 69, we get 4 and a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 9627.84
The remainder is 4 after subtracting 276 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
40 divided by 69 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 9627.84
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
When dividing 400 by 69, we get 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 9627.8405
If we subtract 345 from 400, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
550 divided by 69 is 7 with a remainder of 67.
Record the quotient 7 as the next digit in the result. 
Result so far: 9627.84057
Deduct 483 from 550 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 12:
When dividing 670 by 69, we get 9 with a remainder of 49.
Put 9 as the next digit of the answer. 
Result so far: 9627.840579
The remainder is 49 after subtracting 621 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 13:
69 can be fit into 490 7 times, resulting in a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 9627.8405797
The remainder is 7 after subtracting 483 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 14:
69 goes into 70 1 times with a remainder of 1.
The next digit of our result is 1. 
Result so far: 9627.84057971
Subtract 69 from 70 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

In conclusion, the division gives 9627.84057971 with a balance of 1e-09.