We divide 778859 by 18
The aim is to understand the frequency of 18 in 778859.

Let's proceed to step 1:
When dividing 7 by 18, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 18

On to step 2:
18 goes into 77 4 times with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 72 from 77, we get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 18

Let's proceed to step 3:
If we divide 58 by 18, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
If we take 54 away from 58, we end up with 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 18

On to step 4:
48 divided by 18 is 2 with a remainder of 12.
Record the quotient 2 as the next digit in the result. 
Result so far: 432.0
Subtracting 36 from 48 leaves us with 12.
Bring next digit (5) of the dividend behind the 12 and repeat the process: 125 / 18

Let's proceed to step 5:
18 goes into 125 6 times with a remainder of 17.
The number 6 becomes the next digit in our result. 
Result so far: 4326.0
Deduct 108 from 125 and we're left with 17.
Grab the next digit (9) from the dividend, add it to 17, then carry on: 179 / 18

Going ahead to step 6:
18 can be fit into 179 9 times, resulting in a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 43269.0
If we take 162 away from 179, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
170 divided by 18 is 9 with a remainder of 8.
The next digit of our result is 9. 
Result so far: 43269.9
The remainder is 8 after subtracting 162 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 8:
The number 18 fits into 80 4 times, leaving a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 43269.94
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
80 divided by 18 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 43269.944
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 43269.944, and the remainder is 0.0008.