We divide 250461 by 18
The aim is to understand the frequency of 18 in 250461.

Going ahead to step 1:
When dividing 2 by 18, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 18

On to step 2:
If we divide 25 by 18, we get 1 and a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 18 from 25 to get 7.
Take the next digit (0) from the dividend and append it to 7, then repeat: 70 / 18

On to step 3:
When dividing 70 by 18, we get 3 with a remainder of 16.
Write down 3 as next digit of the result. 
Result so far: 13.0
The remainder is 16 after subtracting 54 from 70.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 18

Moving on to step 4:
When dividing 164 by 18, we get 9 with a remainder of 2.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
Deduct 162 from 164 and we're left with 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 18

Advancing to step 5:
26 divided by 18 is 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 1391.0
The remainder is 8 after subtracting 18 from 26.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 18

Advancing to step 6:
When dividing 81 by 18, we get 4 with a remainder of 9.
Write down 4 as next digit of the result. 
Result so far: 13914.0
The remainder is 9 after subtracting 72 from 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
18 can be fit into 90 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 13914.5
Subtracting 90 from 90 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
When dividing 0 by 18, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13914.5
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
0 divided by 18 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 13914.5
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 13914.5 with a remaining 0.0.