We're dividing 713487 by 20 
The aim is to understand the frequency of 20 in 713487.

Going ahead to step 1:
7 divided by 20 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 20

Let's proceed to step 2:
20 goes into 71 3 times with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 60 from 71 leaves us with 11.
Fetch the next digit (3) from the dividend, attach it to 11 and continue: 113 / 20

Going ahead to step 3:
20 can be fit into 113 5 times, resulting in a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 35.0
If we take 100 away from 113, we end up with 13.
Fetch the next digit (4) from the dividend, attach it to 13 and continue: 134 / 20

Advancing to step 4:
20 can be fit into 134 6 times, resulting in a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 356.0
Subtract 120 from 134 to get 14.
Grab the next digit (8) from the dividend, add it to 14, then carry on: 148 / 20

Going ahead to step 5:
The number 20 fits into 148 7 times, leaving a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 3567.0
Deduct 140 from 148 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 20

Advancing to step 6:
20 can be fit into 87 4 times, resulting in a remainder of 7.
The number 4 becomes the next digit in our result. 
Result so far: 35674.0
Subtracting 80 from 87 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
20 can be fit into 70 3 times, resulting in a remainder of 10.
Put 3 as the next digit of the answer. 
Result so far: 35674.3
Subtract 60 from 70 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.

Let's proceed to step 8:
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: 35674.35
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.

Advancing to step 9:
20 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 35674.35
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.

Moving on to step 10:
If we divide 0 by 20, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 35674.35
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.

The final outcome is 35674.35, with a leftover of 0.0.