250592 divided by 18 
The aim is to understand the frequency of 18 in 250592.

On to step 1:
The number 18 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 18

On to step 2:
18 can be fit into 25 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 18 away from 25, we end up with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 18

Going ahead to step 3:
When dividing 70 by 18, we get 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
If we take 54 away from 70, we end up with 16.
Include the next digit (5) from the dividend after 16, then repeat: 165 / 18

On to step 4:
The number 18 fits into 165 9 times, leaving a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 139.0
Subtract 162 from 165 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 18

Advancing to step 5:
39 divided by 18 is 2 with a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 1392.0
If we take 36 away from 39, we end up with 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 18

Going ahead to step 6:
The number 18 fits into 32 1 times, leaving a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 13921.0
The remainder is 14 after subtracting 18 from 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
18 goes into 140 7 times with a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 13921.7
Deduct 126 from 140 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
The number 18 fits into 140 7 times, leaving a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 13921.77
Subtracting 126 from 140 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The quotient of the division is 13921.77, and the remainder is 0.014.