We're dividing 82641943 by 18 
The aim is to understand the frequency of 18 in 82641943.

Let's proceed to step 1:
If we divide 8 by 18, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (2) from the dividend after 8, then repeat: 82 / 18

Let's proceed to step 2:
If we divide 82 by 18, we get 4 and a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 72 from 82 and we're left with 10.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 18

Advancing to step 3:
When dividing 106 by 18, we get 5 with a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 45.0
If we subtract 90 from 106, we get 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 18

Step 4:
If we divide 164 by 18, we get 9 and a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 459.0
If we take 162 away from 164, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 18

Let's proceed to step 5:
The number 18 fits into 21 1 times, leaving a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 4591.0
If we subtract 18 from 21, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 18

Advancing to step 6:
When dividing 39 by 18, we get 2 with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 45912.0
The remainder is 3 after subtracting 36 from 39.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 18

Moving on to step 7:
If we divide 34 by 18, we get 1 and a remainder of 16.
The next digit of our result is 1. 
Result so far: 459121.0
If we subtract 18 from 34, we get 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 18

Advancing to step 8:
When dividing 163 by 18, we get 9 with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 4591219.0
Deduct 162 from 163 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
When dividing 10 by 18, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 4591219.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 4591219.05
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
If we divide 100 by 18, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 4591219.055
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 4591219.055, with a leftover of 0.001.