Let's divide 809969 by 31
The aim is to understand the frequency of 31 in 809969.

Let's proceed to step 1:
When dividing 8 by 31, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 31

Moving on to step 2:
When dividing 80 by 31, we get 2 with a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 62 from 80 to get 18.
Append the next digit (9) from the dividend to 18 and continue with: 189 / 31

Let's proceed to step 3:
The number 31 fits into 189 6 times, leaving a remainder of 3.
Use 6 as the next digit of our solution. 
Result so far: 26.0
Subtract 186 from 189 to get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 31

Let's proceed to step 4:
31 goes into 39 1 times with a remainder of 8.
The next digit of our result is 1. 
Result so far: 261.0
Deduct 31 from 39 and we're left with 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 31

Step 5:
When dividing 86 by 31, we get 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 2612.0
The remainder is 24 after subtracting 62 from 86.
Append the next digit (9) from the dividend to 24 and continue with: 249 / 31

Moving on to step 6:
31 goes into 249 8 times with a remainder of 1.
The number 8 becomes the next digit in our result. 
Result so far: 26128.0
Deduct 248 from 249 and we're left 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:
The number 31 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 26128.0
Deduct 0 from 10 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.

Moving on to step 8:
100 divided by 31 is 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 26128.03
If we subtract 93 from 100, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 9:
70 divided by 31 is 2 with a remainder of 8.
The next digit of our result is 2. 
Result so far: 26128.032
If we take 62 away from 70, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
31 goes into 80 2 times with a remainder of 18.
The next digit of our result is 2. 
Result so far: 26128.0322
Subtract 62 from 80 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 26128.0322 with a balance of 0.00018.