We look at the division of 30306189 by 308 
The aim is to understand the frequency of 308 in 30306189.

Moving on to step 1:
308 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 308

Moving on to step 2:
If we divide 30 by 308, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 30 to get 30.
Bring next digit (3) of the dividend behind the 30 and repeat the process: 303 / 308

Let's proceed to step 3:
The number 308 fits into 303 0 times, leaving a remainder of 303.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 303 leaves us with 303.
Fetch the next digit (0) from the dividend, attach it to 303 and continue: 3030 / 308

Step 4:
When dividing 3030 by 308, we get 9 with a remainder of 258.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Subtracting 2772 from 3030 leaves us with 258.
Include the next digit (6) from the dividend after 258, then repeat: 2586 / 308

Advancing to step 5:
308 can be fit into 2586 8 times, resulting in a remainder of 122.
Write down 8 as next digit of the result. 
Result so far: 98.0
The remainder is 122 after subtracting 2464 from 2586.
Fetch the next digit (1) from the dividend, attach it to 122 and continue: 1221 / 308

Advancing to step 6:
308 can be fit into 1221 3 times, resulting in a remainder of 297.
Write down 3 as next digit of the result. 
Result so far: 983.0
If we take 924 away from 1221, we end up with 297.
Grab the next digit (8) from the dividend, add it to 297, then carry on: 2978 / 308

Let's proceed to step 7:
2978 divided by 308 is 9 with a remainder of 206.
Write down 9 as next digit of the result. 
Result so far: 9839.0
If we subtract 2772 from 2978, we get 206.
Bring next digit (9) of the dividend behind the 206 and repeat the process: 2069 / 308

On to step 8:
If we divide 2069 by 308, we get 6 and a remainder of 221.
Use 6 as the next digit of our solution. 
Result so far: 98396.0
If we take 1848 away from 2069, we end up with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Step 9:
308 goes into 2210 7 times with a remainder of 54.
Put 7 as the next digit of the answer. 
Result so far: 98396.7
Subtracting 2156 from 2210 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 10:
308 can be fit into 540 1 times, resulting in a remainder of 232.
The next digit of our result is 1. 
Result so far: 98396.71
The remainder is 232 after subtracting 308 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Advancing to step 11:
The number 308 fits into 2320 7 times, leaving a remainder of 164.
The next digit of our result is 7. 
Result so far: 98396.717
Subtract 2156 from 2320 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 12:
1640 divided by 308 is 5 with a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 98396.7175
The remainder is 100 after subtracting 1540 from 1640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Advancing to step 13:
The number 308 fits into 1000 3 times, leaving a remainder of 76.
The number 3 becomes the next digit in our result. 
Result so far: 98396.71753
If we subtract 924 from 1000, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 14:
308 goes into 760 2 times with a remainder of 144.
Use 2 as the next digit of our solution. 
Result so far: 98396.717532
Subtracting 616 from 760 leaves us with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Step 15:
The number 308 fits into 1440 4 times, leaving a remainder of 208.
Record the quotient 4 as the next digit in the result. 
Result so far: 98396.7175324
If we take 1232 away from 1440, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Advancing to step 16:
The number 308 fits into 2080 6 times, leaving a remainder of 232.
Record the quotient 6 as the next digit in the result. 
Result so far: 98396.71753246
Deduct 1848 from 2080 and we're left with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

The final outcome is 98396.71753246, with a leftover of 2.32e-07.