254878 divided by 20 
The aim is to understand the frequency of 20 in 254878.

Moving on to step 1:
When dividing 2 by 20, we get 0 with 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.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 20

Step 2:
When dividing 25 by 20, we get 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 20 from 25 to get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 20

Step 3:
20 can be fit into 54 2 times, resulting in a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 40 from 54 to get 14.
Take the next digit (8) from the dividend and append it to 14, then repeat: 148 / 20

On to step 4:
The number 20 fits into 148 7 times, leaving a remainder of 8.
Put 7 as the next digit of the answer. 
Result so far: 127.0
If we take 140 away from 148, we end up with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 20

Moving on to step 5:
If we divide 87 by 20, we get 4 and a remainder of 7.
The next digit of our result is 4. 
Result so far: 1274.0
If we subtract 80 from 87, we get 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 20

Step 6:
20 can be fit into 78 3 times, resulting in a remainder of 18.
The next digit of our result is 3. 
Result so far: 12743.0
If we take 60 away from 78, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 7:
20 can be fit into 180 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 12743.9
Subtract 180 from 180 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.

Advancing to step 8:
If we divide 0 by 20, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12743.9
If we take 0 away from 0, we end up 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 9:
20 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 12743.9
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.

The quotient of the division is 12743.9, and the remainder is 0.0.