84190 ÷ 20 
The aim is to understand the frequency of 20 in 84190.

Going ahead to step 1:
20 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 20

Going ahead to step 2:
20 can be fit into 84 4 times, resulting in a remainder of 4.
The next digit of our result is 4. 
Result so far: 4.0
If we take 80 away from 84, we end up with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 20

Advancing to step 3:
20 goes into 41 2 times with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
If we subtract 40 from 41, we get 1.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 20

On to step 4:
If we divide 19 by 20, we get 0 and a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 420.0
Subtract 0 from 19 to get 19.
Include the next digit (0) from the dividend after 19, then repeat: 190 / 20

Step 5:
190 divided by 20 is 9 with a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 4209.0
Deduct 180 from 190 and we're left 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.

Let's proceed to step 6:
20 can be fit into 100 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 4209.5
If we subtract 100 from 100, 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.

Step 7:
20 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 4209.5
Subtract 0 from 0 to 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.

Step 8:
0 divided by 20 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 4209.5
Subtract 0 from 0 to 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.

After the division, we end up with 4209.5 and a remainder of 0.0.