545846 ÷ 20 
The aim is to understand the frequency of 20 in 545846.

Step 1:
The number 20 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 20

Let's proceed to step 2:
20 goes into 54 2 times with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 40 from 54 to get 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 20

Moving on to step 3:
20 can be fit into 145 7 times, resulting in a remainder of 5.
The next digit of our result is 7. 
Result so far: 27.0
If we take 140 away from 145, we end up with 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 20

Moving on to step 4:
58 divided by 20 is 2 with a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 272.0
The remainder is 18 after subtracting 40 from 58.
Take the next digit (4) from the dividend and append it to 18, then repeat: 184 / 20

Step 5:
20 can be fit into 184 9 times, resulting in a remainder of 4.
Put 9 as the next digit of the answer. 
Result so far: 2729.0
Deduct 180 from 184 and we're left with 4.
Take the next digit (6) from the dividend and append it to 4, then repeat: 46 / 20

On to step 6:
When dividing 46 by 20, we get 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 27292.0
Deduct 40 from 46 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
When dividing 60 by 20, we get 3 with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 27292.3
The remainder is 0 after subtracting 60 from 60.
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:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 27292.3
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.

Advancing to step 9:
0 divided by 20 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 27292.3
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 outcome is 27292.3, with a leftover of 0.0.