689031 divided by 20 
The aim is to understand the frequency of 20 in 689031.

Step 1:
6 divided by 20 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 20

Let's proceed to step 2:
When dividing 68 by 20, we get 3 with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
The remainder is 8 after subtracting 60 from 68.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 20

Let's proceed to step 3:
89 divided by 20 is 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 34.0
Subtract 80 from 89 to get 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 20

Going ahead to step 4:
If we divide 90 by 20, we get 4 and a remainder of 10.
Record the quotient 4 as the next digit in the result. 
Result so far: 344.0
Deduct 80 from 90 and we're left with 10.
Append the next digit (3) from the dividend to 10 and continue with: 103 / 20

Advancing to step 5:
The number 20 fits into 103 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 3445.0
Deduct 100 from 103 and we're left with 3.
Grab the next digit (1) from the dividend, add it to 3, then carry on: 31 / 20

Going ahead to step 6:
20 can be fit into 31 1 times, resulting in a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 34451.0
If we take 20 away from 31, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
20 goes into 110 5 times with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 34451.5
If we take 100 away from 110, we end up 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.

Advancing to step 8:
The number 20 fits into 100 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 34451.55
If we subtract 100 from 100, 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.

The final outcome is 34451.55, with a leftover of 0.0.