We're dividing 6015151 by 20 
The aim is to understand the frequency of 20 in 6015151.

On to step 1:
If we divide 6 by 20, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 20

Step 2:
When dividing 60 by 20, we get 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 60 from 60 and we're left with 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 20

Going ahead to step 3:
20 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 30.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 20

Moving on to step 4:
When dividing 15 by 20, we get 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 300.0
If we subtract 0 from 15, we get 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 20

On to step 5:
151 divided by 20 is 7 with a remainder of 11.
The next digit of our result is 7. 
Result so far: 3007.0
Subtract 140 from 151 to get 11.
Take the next digit (5) from the dividend and append it to 11, then repeat: 115 / 20

Going ahead to step 6:
The number 20 fits into 115 5 times, leaving a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 30075.0
Subtracting 100 from 115 leaves us with 15.
Take the next digit (1) from the dividend and append it to 15, then repeat: 151 / 20

Moving on to step 7:
When dividing 151 by 20, we get 7 with a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 300757.0
If we subtract 140 from 151, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 8:
110 divided by 20 is 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 300757.5
Subtract 100 from 110 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
When dividing 100 by 20, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 300757.55
Subtract 100 from 100 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.

The final result is 300757.55 with a remainder of 0.0.