We look at the division of 239356 by 57 
The aim is to understand the frequency of 57 in 239356.

Going ahead to step 1:
When dividing 2 by 57, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 57

Let's proceed to step 2:
57 goes into 23 0 times with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 23, we get 23.
Append the next digit (9) from the dividend to 23 and continue with: 239 / 57

Let's proceed to step 3:
57 can be fit into 239 4 times, resulting in a remainder of 11.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 228 from 239 leaves us with 11.
Append the next digit (3) from the dividend to 11 and continue with: 113 / 57

Step 4:
57 goes into 113 1 times with a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 41.0
If we subtract 57 from 113, we get 56.
Take the next digit (5) from the dividend and append it to 56, then repeat: 565 / 57

On to step 5:
If we divide 565 by 57, we get 9 and a remainder of 52.
Use 9 as the next digit of our solution. 
Result so far: 419.0
Deduct 513 from 565 and we're left with 52.
Append the next digit (6) from the dividend to 52 and continue with: 526 / 57

Advancing to step 6:
If we divide 526 by 57, we get 9 and a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 4199.0
Subtracting 513 from 526 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.

Step 7:
When dividing 130 by 57, we get 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 4199.2
The remainder is 16 after subtracting 114 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
57 can be fit into 160 2 times, resulting in a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 4199.22
If we take 114 away from 160, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

The final result is 4199.22 with a remainder of 0.046.