839177 ÷ 20 
The aim is to understand the frequency of 20 in 839177.

Let's proceed to step 1:
8 divided by 20 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 20

Moving on to step 2:
If we divide 83 by 20, we get 4 and a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 4.0
Deduct 80 from 83 and we're left with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 20

Step 3:
39 divided by 20 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 41.0
The remainder is 19 after subtracting 20 from 39.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 20

Advancing to step 4:
20 goes into 191 9 times with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 419.0
If we take 180 away from 191, we end up with 11.
Bring next digit (7) of the dividend behind the 11 and repeat the process: 117 / 20

Advancing to step 5:
If we divide 117 by 20, we get 5 and a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 4195.0
If we take 100 away from 117, we end up with 17.
Append the next digit (7) from the dividend to 17 and continue with: 177 / 20

Let's proceed to step 6:
177 divided by 20 is 8 with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 41958.0
Subtract 160 from 177 to get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
170 divided by 20 is 8 with a remainder of 10.
The number 8 becomes the next digit in our result. 
Result so far: 41958.8
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.

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: 41958.85
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.

Going ahead to step 9:
The number 20 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 41958.85
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.

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: 41958.85
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.

The final result is 41958.85 with a remainder of 0.0.