We're dividing 353829 by 31 
The aim is to understand the frequency of 31 in 353829.

Going ahead to step 1:
31 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 31

Advancing to step 2:
35 divided by 31 is 1 with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 31 from 35 to get 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 31

Going ahead to step 3:
43 divided by 31 is 1 with a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 31 from 43 leaves us with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 31

Advancing to step 4:
31 goes into 128 4 times with a remainder of 4.
The next digit of our result is 4. 
Result so far: 114.0
The remainder is 4 after subtracting 124 from 128.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 31

Advancing to step 5:
31 goes into 42 1 times with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1141.0
The remainder is 11 after subtracting 31 from 42.
Include the next digit (9) from the dividend after 11, then repeat: 119 / 31

Moving on to step 6:
When dividing 119 by 31, we get 3 with a remainder of 26.
The next digit of our result is 3. 
Result so far: 11413.0
The remainder is 26 after subtracting 93 from 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 7:
When dividing 260 by 31, we get 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 11413.8
Subtracting 248 from 260 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 8:
When dividing 120 by 31, we get 3 with a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 11413.83
Subtract 93 from 120 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 9:
When dividing 270 by 31, we get 8 with a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 11413.838
Subtract 248 from 270 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 10:
When dividing 220 by 31, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 11413.8387
If we subtract 217 from 220, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 11:
31 can be fit into 30 0 times, resulting in a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 11413.8387
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 12:
31 goes into 300 9 times with a remainder of 21.
The next digit of our result is 9. 
Result so far: 11413.838709
If we subtract 279 from 300, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 13:
When dividing 210 by 31, we get 6 with a remainder of 24.
Put 6 as the next digit of the answer. 
Result so far: 11413.8387096
Deduct 186 from 210 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 14:
31 goes into 240 7 times with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 11413.83870967
If we take 217 away from 240, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 11413.83870967 and a remainder of 2.3e-08.