858885 ÷ 53 
The aim is to understand the frequency of 53 in 858885.

Moving on to step 1:
The number 53 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 53

Let's proceed to step 2:
The number 53 fits into 85 1 times, leaving a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 53 from 85 leaves us with 32.
Fetch the next digit (8) from the dividend, attach it to 32 and continue: 328 / 53

On to step 3:
If we divide 328 by 53, we get 6 and a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Deduct 318 from 328 and we're left with 10.
Bring next digit (8) of the dividend behind the 10 and repeat the process: 108 / 53

Moving on to step 4:
The number 53 fits into 108 2 times, leaving a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 162.0
If we subtract 106 from 108, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 53

Going ahead to step 5:
The number 53 fits into 28 0 times, leaving a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 1620.0
The remainder is 28 after subtracting 0 from 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 53

Let's proceed to step 6:
If we divide 285 by 53, we get 5 and a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 16205.0
The remainder is 20 after subtracting 265 from 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 7:
The number 53 fits into 200 3 times, leaving a remainder of 41.
The next digit of our result is 3. 
Result so far: 16205.3
The remainder is 41 after subtracting 159 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 8:
The number 53 fits into 410 7 times, leaving a remainder of 39.
Use 7 as the next digit of our solution. 
Result so far: 16205.37
Deduct 371 from 410 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 9:
390 divided by 53 is 7 with a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 16205.377
Deduct 371 from 390 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final result is 16205.377 with a remainder of 0.0019.