We look at the division of 431953 by 69 
The aim is to understand the frequency of 69 in 431953.

On to step 1:
69 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 69

Advancing to step 2:
43 divided by 69 is 0 with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Take the next digit (1) from the dividend and append it to 43, then repeat: 431 / 69

Going ahead to step 3:
When dividing 431 by 69, we get 6 with a remainder of 17.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 414 from 431 and we're left with 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 69

Going ahead to step 4:
When dividing 179 by 69, we get 2 with a remainder of 41.
Record the quotient 2 as the next digit in the result. 
Result so far: 62.0
Subtract 138 from 179 to get 41.
Grab the next digit (5) from the dividend, add it to 41, then carry on: 415 / 69

Moving on to step 5:
The number 69 fits into 415 6 times, leaving a remainder of 1.
Put 6 as the next digit of the answer. 
Result so far: 626.0
The remainder is 1 after subtracting 414 from 415.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 69

Advancing to step 6:
If we divide 13 by 69, we get 0 and a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 6260.0
Subtracting 0 from 13 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
130 divided by 69 is 1 with a remainder of 61.
Write down 1 as next digit of the result. 
Result so far: 6260.1
Subtracting 69 from 130 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 8:
When dividing 610 by 69, we get 8 with a remainder of 58.
The next digit of our result is 8. 
Result so far: 6260.18
The remainder is 58 after subtracting 552 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 9:
580 divided by 69 is 8 with a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 6260.188
If we subtract 552 from 580, we 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.

After the division, we end up with 6260.188 and a remainder of 0.0028.