We look at the division of 18854172 by 258 
The aim is to understand the frequency of 258 in 18854172.

Step 1:
If we divide 1 by 258, we get 0 and a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 258

Let's proceed to step 2:
18 divided by 258 is 0 with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 258

On to step 3:
When dividing 188 by 258, we get 0 with a remainder of 188.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 188 leaves us with 188.
Take the next digit (5) from the dividend and append it to 188, then repeat: 1885 / 258

Going ahead to step 4:
1885 divided by 258 is 7 with a remainder of 79.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 1806 from 1885, we get 79.
Grab the next digit (4) from the dividend, add it to 79, then carry on: 794 / 258

Moving on to step 5:
The number 258 fits into 794 3 times, leaving a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 73.0
If we take 774 away from 794, we end up with 20.
Fetch the next digit (1) from the dividend, attach it to 20 and continue: 201 / 258

Step 6:
201 divided by 258 is 0 with a remainder of 201.
The number 0 becomes the next digit in our result. 
Result so far: 730.0
The remainder is 201 after subtracting 0 from 201.
Append the next digit (7) from the dividend to 201 and continue with: 2017 / 258

Let's proceed to step 7:
If we divide 2017 by 258, we get 7 and a remainder of 211.
Use 7 as the next digit of our solution. 
Result so far: 7307.0
The remainder is 211 after subtracting 1806 from 2017.
Include the next digit (2) from the dividend after 211, then repeat: 2112 / 258

Step 8:
If we divide 2112 by 258, we get 8 and a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 73078.0
Deduct 2064 from 2112 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.

Moving on to step 9:
The number 258 fits into 480 1 times, leaving a remainder of 222.
Write down 1 as next digit of the result. 
Result so far: 73078.1
Subtract 258 from 480 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Step 10:
If we divide 2220 by 258, we get 8 and a remainder of 156.
Record the quotient 8 as the next digit in the result. 
Result so far: 73078.18
Subtracting 2064 from 2220 leaves us with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Going ahead to step 11:
258 can be fit into 1560 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 73078.186
The remainder is 12 after subtracting 1548 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
258 goes into 120 0 times with a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 73078.186
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 13:
When dividing 1200 by 258, we get 4 with a remainder of 168.
The next digit of our result is 4. 
Result so far: 73078.18604
The remainder is 168 after subtracting 1032 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 14:
258 goes into 1680 6 times with a remainder of 132.
Put 6 as the next digit of the answer. 
Result so far: 73078.186046
Subtracting 1548 from 1680 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Moving on to step 15:
If we divide 1320 by 258, we get 5 and a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 73078.1860465
The remainder is 30 after subtracting 1290 from 1320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 16:
When dividing 300 by 258, we get 1 with a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 73078.18604651
The remainder is 42 after subtracting 258 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

In conclusion, the division gives 73078.18604651 with a balance of 4.2e-08.