We're dividing 889378 by 18 
The aim is to understand the frequency of 18 in 889378.

Advancing to step 1:
8 divided by 18 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 18

Moving on to step 2:
88 divided by 18 is 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 72 away from 88, we end up with 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 18

Going ahead to step 3:
When dividing 169 by 18, we get 9 with a remainder of 7.
The next digit of our result is 9. 
Result so far: 49.0
Deduct 162 from 169 and we're left with 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 18

Moving on to step 4:
18 goes into 73 4 times with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 494.0
If we take 72 away from 73, we end up with 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 18

Let's proceed to step 5:
When dividing 17 by 18, we get 0 with a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 4940.0
If we subtract 0 from 17, we get 17.
Take the next digit (8) from the dividend and append it to 17, then repeat: 178 / 18

Advancing to step 6:
18 goes into 178 9 times with a remainder of 16.
The number 9 becomes the next digit in our result. 
Result so far: 49409.0
The remainder is 16 after subtracting 162 from 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
If we divide 160 by 18, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 49409.8
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
If we divide 160 by 18, we get 8 and a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 49409.88
If we take 144 away from 160, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 49409.88 with a remainder of 0.016.