260840 divided by 20 
The aim is to understand the frequency of 20 in 260840.

Going ahead to step 1:
If we divide 2 by 20, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 20

On to step 2:
When dividing 26 by 20, we get 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 6 after subtracting 20 from 26.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 20

Advancing to step 3:
If we divide 60 by 20, we get 3 and a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 60 from 60 and we're left with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 20

Moving on to step 4:
20 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
If we subtract 0 from 8, we get 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 20

Going ahead to step 5:
When dividing 84 by 20, we get 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 1304.0
If we subtract 80 from 84, we get 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 20

Moving on to step 6:
When dividing 40 by 20, we get 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 13042.0
Deduct 40 from 40 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.

Going ahead to step 7:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 13042.0
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 8:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 13042.0
Subtracting 0 from 0 leaves us 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.

After the division, we end up with 13042.0 and a remainder of 0.0.