258597 divided by 57 
The aim is to understand the frequency of 57 in 258597.

Going ahead to step 1:
57 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 57

Going ahead to step 2:
57 can be fit into 25 0 times, resulting in a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 25 leaves us with 25.
Append the next digit (8) from the dividend to 25 and continue with: 258 / 57

Moving on to step 3:
258 divided by 57 is 4 with a remainder of 30.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 228 away from 258, we end up with 30.
Grab the next digit (5) from the dividend, add it to 30, then carry on: 305 / 57

Advancing to step 4:
When dividing 305 by 57, we get 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 45.0
The remainder is 20 after subtracting 285 from 305.
Bring next digit (9) of the dividend behind the 20 and repeat the process: 209 / 57

Going ahead to step 5:
When dividing 209 by 57, we get 3 with a remainder of 38.
The number 3 becomes the next digit in our result. 
Result so far: 453.0
Deduct 171 from 209 and we're left with 38.
Take the next digit (7) from the dividend and append it to 38, then repeat: 387 / 57

Step 6:
If we divide 387 by 57, we get 6 and a remainder of 45.
The number 6 becomes the next digit in our result. 
Result so far: 4536.0
Subtract 342 from 387 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 7:
57 can be fit into 450 7 times, resulting in a remainder of 51.
Put 7 as the next digit of the answer. 
Result so far: 4536.7
If we subtract 399 from 450, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 8:
57 goes into 510 8 times with a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 4536.78
Subtract 456 from 510 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 9:
The number 57 fits into 540 9 times, leaving a remainder of 27.
Record the quotient 9 as the next digit in the result. 
Result so far: 4536.789
The remainder is 27 after subtracting 513 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 10:
57 goes into 270 4 times with a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 4536.7894
If we subtract 228 from 270, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 11:
The number 57 fits into 420 7 times, leaving a remainder of 21.
The next digit of our result is 7. 
Result so far: 4536.78947
Subtract 399 from 420 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 12:
The number 57 fits into 210 3 times, leaving a remainder of 39.
The number 3 becomes the next digit in our result. 
Result so far: 4536.789473
Subtracting 171 from 210 leaves us 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.

Going ahead to step 13:
If we divide 390 by 57, we get 6 and a remainder of 48.
Use 6 as the next digit of our solution. 
Result so far: 4536.7894736
If we subtract 342 from 390, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 14:
The number 57 fits into 480 8 times, leaving a remainder of 24.
The next digit of our result is 8. 
Result so far: 4536.78947368
Subtracting 456 from 480 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 4536.78947368 with a remainder of 2.4e-08.