Let's divide 23230390 by 308
The aim is to understand the frequency of 308 in 23230390.

Step 1:
The number 308 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 308

Moving on to step 2:
If we divide 23 by 308, we get 0 and a remainder of 23.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 23 to get 23.
Fetch the next digit (2) from the dividend, attach it to 23 and continue: 232 / 308

Advancing to step 3:
The number 308 fits into 232 0 times, leaving a remainder of 232.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 232 to get 232.
Grab the next digit (3) from the dividend, add it to 232, then carry on: 2323 / 308

Advancing to step 4:
2323 divided by 308 is 7 with a remainder of 167.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 2156 from 2323 leaves us with 167.
Grab the next digit (0) from the dividend, add it to 167, then carry on: 1670 / 308

Going ahead to step 5:
308 can be fit into 1670 5 times, resulting in a remainder of 130.
Use 5 as the next digit of our solution. 
Result so far: 75.0
If we take 1540 away from 1670, we end up with 130.
Include the next digit (3) from the dividend after 130, then repeat: 1303 / 308

Advancing to step 6:
If we divide 1303 by 308, we get 4 and a remainder of 71.
Use 4 as the next digit of our solution. 
Result so far: 754.0
Deduct 1232 from 1303 and we're left with 71.
Include the next digit (9) from the dividend after 71, then repeat: 719 / 308

Moving on to step 7:
308 goes into 719 2 times with a remainder of 103.
Put 2 as the next digit of the answer. 
Result so far: 7542.0
The remainder is 103 after subtracting 616 from 719.
Include the next digit (0) from the dividend after 103, then repeat: 1030 / 308

Let's proceed to step 8:
308 can be fit into 1030 3 times, resulting in a remainder of 106.
Put 3 as the next digit of the answer. 
Result so far: 75423.0
If we take 924 away from 1030, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 9:
When dividing 1060 by 308, we get 3 with a remainder of 136.
Write down 3 as next digit of the result. 
Result so far: 75423.3
If we subtract 924 from 1060, we get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 10:
1360 divided by 308 is 4 with a remainder of 128.
The next digit of our result is 4. 
Result so far: 75423.34
Subtracting 1232 from 1360 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 11:
1280 divided by 308 is 4 with a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 75423.344
Deduct 1232 from 1280 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

The final outcome is 75423.344, with a leftover of 0.0048.