801701 ÷ 20 
The aim is to understand the frequency of 20 in 801701.

On to step 1:
8 divided by 20 is 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 20

Step 2:
20 goes into 80 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 80 from 80 to get 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 20

Moving on to step 3:
The number 20 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 40.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 20

On to step 4:
If we divide 17 by 20, we get 0 and a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 400.0
If we subtract 0 from 17, we get 17.
Grab the next digit (0) from the dividend, add it to 17, then carry on: 170 / 20

Step 5:
20 goes into 170 8 times with a remainder of 10.
Record the quotient 8 as the next digit in the result. 
Result so far: 4008.0
Deduct 160 from 170 and we're left with 10.
Grab the next digit (1) from the dividend, add it to 10, then carry on: 101 / 20

Advancing to step 6:
20 goes into 101 5 times with a remainder of 1.
The number 5 becomes the next digit in our result. 
Result so far: 40085.0
Subtracting 100 from 101 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 7:
When dividing 10 by 20, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 40085.0
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 40085.05
The remainder is 0 after subtracting 100 from 100.
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 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 40085.05
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.

Step 10:
0 divided by 20 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 40085.05
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 40085.05 with a remaining 0.0.