We're dividing 303061 by 57 
The aim is to understand the frequency of 57 in 303061.

Step 1:
3 divided by 57 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 57

Step 2:
30 divided by 57 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Include the next digit (3) from the dividend after 30, then repeat: 303 / 57

Let's proceed to step 3:
The number 57 fits into 303 5 times, leaving a remainder of 18.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Deduct 285 from 303 and we're left with 18.
Take the next digit (0) from the dividend and append it to 18, then repeat: 180 / 57

On to step 4:
If we divide 180 by 57, we get 3 and a remainder of 9.
The next digit of our result is 3. 
Result so far: 53.0
Subtract 171 from 180 to get 9.
Bring next digit (6) of the dividend behind the 9 and repeat the process: 96 / 57

Step 5:
96 divided by 57 is 1 with a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 531.0
If we subtract 57 from 96, we get 39.
Take the next digit (1) from the dividend and append it to 39, then repeat: 391 / 57

Step 6:
57 can be fit into 391 6 times, resulting in a remainder of 49.
The next digit of our result is 6. 
Result so far: 5316.0
If we take 342 away from 391, we end up with 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 7:
57 goes into 490 8 times with a remainder of 34.
Write down 8 as next digit of the result. 
Result so far: 5316.8
Subtract 456 from 490 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 8:
340 divided by 57 is 5 with a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 5316.85
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.

Going ahead to step 9:
The number 57 fits into 550 9 times, leaving a remainder of 37.
Put 9 as the next digit of the answer. 
Result so far: 5316.859
Subtract 513 from 550 to 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.

Advancing to step 10:
If we divide 370 by 57, we get 6 and a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 5316.8596
Deduct 342 from 370 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
280 divided by 57 is 4 with a remainder of 52.
Write down 4 as next digit of the result. 
Result so far: 5316.85964
If we take 228 away from 280, we end up with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 12:
When dividing 520 by 57, we get 9 with a remainder of 7.
Record the quotient 9 as the next digit in the result. 
Result so far: 5316.859649
The remainder is 7 after subtracting 513 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 13:
70 divided by 57 is 1 with a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 5316.8596491
Subtract 57 from 70 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 14:
When dividing 130 by 57, we get 2 with a remainder of 16.
The next digit of our result is 2. 
Result so far: 5316.85964912
If we subtract 114 from 130, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 5316.85964912, with a leftover of 1.6e-08.