We look at the division of 395419 by 57 
The aim is to understand the frequency of 57 in 395419.

Step 1:
3 divided by 57 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 57

Let's proceed to step 2:
57 goes into 39 0 times with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Take the next digit (5) from the dividend and append it to 39, then repeat: 395 / 57

Step 3:
If we divide 395 by 57, we get 6 and a remainder of 53.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 342 from 395 and we're left with 53.
Include the next digit (4) from the dividend after 53, then repeat: 534 / 57

Let's proceed to step 4:
534 divided by 57 is 9 with a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 69.0
If we subtract 513 from 534, we get 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 57

Let's proceed to step 5:
When dividing 211 by 57, we get 3 with a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 693.0
If we subtract 171 from 211, we get 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 57

Moving on to step 6:
409 divided by 57 is 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 6937.0
Subtracting 399 from 409 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
If we divide 100 by 57, we get 1 and a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 6937.1
The remainder is 43 after subtracting 57 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Step 8:
430 divided by 57 is 7 with a remainder of 31.
Write down 7 as next digit of the result. 
Result so far: 6937.17
Subtract 399 from 430 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 9:
If we divide 310 by 57, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 6937.175
Subtract 285 from 310 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
When dividing 250 by 57, we get 4 with a remainder of 22.
The number 4 becomes the next digit in our result. 
Result so far: 6937.1754
Subtract 228 from 250 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 11:
The number 57 fits into 220 3 times, leaving a remainder of 49.
The number 3 becomes the next digit in our result. 
Result so far: 6937.17543
Subtract 171 from 220 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 12:
If we divide 490 by 57, we get 8 and a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 6937.175438
The remainder is 34 after subtracting 456 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 13:
57 goes into 340 5 times with a remainder of 55.
Write down 5 as next digit of the result. 
Result so far: 6937.1754385
Deduct 285 from 340 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 14:
When dividing 550 by 57, we get 9 with a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 6937.17543859
If we subtract 513 from 550, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

The final result is 6937.17543859 with a remainder of 3.7e-08.