We look at the division of 57788581 by 308 
The aim is to understand the frequency of 308 in 57788581.

Going ahead to step 1:
If we divide 5 by 308, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 308

Moving on to step 2:
The number 308 fits into 57 0 times, leaving a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 57 leaves us with 57.
Include the next digit (7) from the dividend after 57, then repeat: 577 / 308

Moving on to step 3:
When dividing 577 by 308, we get 1 with a remainder of 269.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 308 from 577 to get 269.
Take the next digit (8) from the dividend and append it to 269, then repeat: 2698 / 308

Step 4:
If we divide 2698 by 308, we get 8 and a remainder of 234.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Subtracting 2464 from 2698 leaves us with 234.
Grab the next digit (8) from the dividend, add it to 234, then carry on: 2348 / 308

On to step 5:
308 can be fit into 2348 7 times, resulting in a remainder of 192.
The number 7 becomes the next digit in our result. 
Result so far: 187.0
Deduct 2156 from 2348 and we're left with 192.
Bring next digit (5) of the dividend behind the 192 and repeat the process: 1925 / 308

Going ahead to step 6:
The number 308 fits into 1925 6 times, leaving a remainder of 77.
Put 6 as the next digit of the answer. 
Result so far: 1876.0
If we take 1848 away from 1925, we end up with 77.
Include the next digit (8) from the dividend after 77, then repeat: 778 / 308

On to step 7:
The number 308 fits into 778 2 times, leaving a remainder of 162.
The number 2 becomes the next digit in our result. 
Result so far: 18762.0
If we subtract 616 from 778, we get 162.
Grab the next digit (1) from the dividend, add it to 162, then carry on: 1621 / 308

Going ahead to step 8:
1621 divided by 308 is 5 with a remainder of 81.
The next digit of our result is 5. 
Result so far: 187625.0
Deduct 1540 from 1621 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 9:
308 goes into 810 2 times with a remainder of 194.
Write down 2 as next digit of the result. 
Result so far: 187625.2
Subtracting 616 from 810 leaves us with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Advancing to step 10:
308 can be fit into 1940 6 times, resulting in a remainder of 92.
Write down 6 as next digit of the result. 
Result so far: 187625.26
Subtracting 1848 from 1940 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 11:
308 goes into 920 2 times with a remainder of 304.
Write down 2 as next digit of the result. 
Result so far: 187625.262
Subtract 616 from 920 to get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 12:
The number 308 fits into 3040 9 times, leaving a remainder of 268.
Use 9 as the next digit of our solution. 
Result so far: 187625.2629
Subtract 2772 from 3040 to get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Moving on to step 13:
The number 308 fits into 2680 8 times, leaving a remainder of 216.
Write down 8 as next digit of the result. 
Result so far: 187625.26298
Subtracting 2464 from 2680 leaves us with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Going ahead to step 14:
When dividing 2160 by 308, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 187625.262987
Deduct 2156 from 2160 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 15:
The number 308 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 187625.262987
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 16:
308 can be fit into 400 1 times, resulting in a remainder of 92.
The number 1 becomes the next digit in our result. 
Result so far: 187625.26298701
Subtract 308 from 400 to get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

In conclusion, the division gives 187625.26298701 with a balance of 9.2e-08.