805837 divided by 20 
The aim is to understand the frequency of 20 in 805837.

On to step 1:
20 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 20

Going ahead to step 2:
20 goes into 80 4 times with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 80 away from 80, we end up with 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 20

On to step 3:
When dividing 5 by 20, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtract 0 from 5 to get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 20

Moving on to step 4:
20 can be fit into 58 2 times, resulting in a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 402.0
Deduct 40 from 58 and we're left with 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 20

Advancing to step 5:
20 goes into 183 9 times with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 4029.0
If we take 180 away from 183, we end up with 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 20

Going ahead to step 6:
20 goes into 37 1 times with a remainder of 17.
Use 1 as the next digit of our solution. 
Result so far: 40291.0
Subtracting 20 from 37 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 7:
20 can be fit into 170 8 times, resulting in a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 40291.8
Deduct 160 from 170 and we're left with 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:
20 can be fit into 100 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 40291.85
If we take 100 away from 100, 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.

On to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 40291.85
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.

Step 10:
0 divided by 20 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 40291.85
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.

After the division, we end up with 40291.85 and a remainder of 0.0.