Let's divide 17640 by 84
The aim is to understand the frequency of 84 in 17640.

Advancing to step 1:
1 divided by 84 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 84

Moving on to step 2:
17 divided by 84 is 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 17 and we're left with 17.
Take the next digit (6) from the dividend and append it to 17, then repeat: 176 / 84

On to step 3:
84 can be fit into 176 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 8 after subtracting 168 from 176.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 84

Going ahead to step 4:
84 divided by 84 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 21.0
If we subtract 84 from 84, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 84

Let's proceed to step 5:
0 divided by 84 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 210.0
If we subtract 0 from 0, 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.

Going ahead to step 6:
If we divide 0 by 84, we get 0 and a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 210.0
Deduct 0 from 0 and we're left with 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:
The number 84 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 210.0
If we subtract 0 from 0, 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.

The final result is 210.0 with a remainder of 0.0.