30309251 ÷ 258 
The aim is to understand the frequency of 258 in 30309251.

Going ahead to step 1:
258 goes into 3 0 times with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 258

Let's proceed to step 2:
The number 258 fits into 30 0 times, leaving a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 30 and we're left with 30.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 258

Going ahead to step 3:
When dividing 303 by 258, we get 1 with a remainder of 45.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 258 from 303, we get 45.
Append the next digit (0) from the dividend to 45 and continue with: 450 / 258

On to step 4:
450 divided by 258 is 1 with a remainder of 192.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 258 from 450, we get 192.
Append the next digit (9) from the dividend to 192 and continue with: 1929 / 258

Step 5:
1929 divided by 258 is 7 with a remainder of 123.
Write down 7 as next digit of the result. 
Result so far: 117.0
If we subtract 1806 from 1929, we get 123.
Fetch the next digit (2) from the dividend, attach it to 123 and continue: 1232 / 258

Moving on to step 6:
258 can be fit into 1232 4 times, resulting in a remainder of 200.
Use 4 as the next digit of our solution. 
Result so far: 1174.0
The remainder is 200 after subtracting 1032 from 1232.
Bring next digit (5) of the dividend behind the 200 and repeat the process: 2005 / 258

Going ahead to step 7:
When dividing 2005 by 258, we get 7 with a remainder of 199.
Put 7 as the next digit of the answer. 
Result so far: 11747.0
Deduct 1806 from 2005 and we're left with 199.
Fetch the next digit (1) from the dividend, attach it to 199 and continue: 1991 / 258

On to step 8:
258 can be fit into 1991 7 times, resulting in a remainder of 185.
Put 7 as the next digit of the answer. 
Result so far: 117477.0
Subtracting 1806 from 1991 leaves us with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

On to step 9:
258 can be fit into 1850 7 times, resulting in a remainder of 44.
The number 7 becomes the next digit in our result. 
Result so far: 117477.7
The remainder is 44 after subtracting 1806 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
258 goes into 440 1 times with a remainder of 182.
Record the quotient 1 as the next digit in the result. 
Result so far: 117477.71
Deduct 258 from 440 and we're left with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Let's proceed to step 11:
The number 258 fits into 1820 7 times, leaving a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 117477.717
The remainder is 14 after subtracting 1806 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 12:
If we divide 140 by 258, we get 0 and a remainder of 140.
The next digit of our result is 0. 
Result so far: 117477.717
If we take 0 away from 140, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Step 13:
If we divide 1400 by 258, we get 5 and a remainder of 110.
Put 5 as the next digit of the answer. 
Result so far: 117477.71705
Subtract 1290 from 1400 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 14:
The number 258 fits into 1100 4 times, leaving a remainder of 68.
The next digit of our result is 4. 
Result so far: 117477.717054
Subtract 1032 from 1100 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 15:
258 can be fit into 680 2 times, resulting in a remainder of 164.
Put 2 as the next digit of the answer. 
Result so far: 117477.7170542
The remainder is 164 after subtracting 516 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 16:
If we divide 1640 by 258, we get 6 and a remainder of 92.
Use 6 as the next digit of our solution. 
Result so far: 117477.71705426
If we subtract 1548 from 1640, we 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 117477.71705426 with a balance of 9.2e-08.