490209 ÷ 31 
The aim is to understand the frequency of 31 in 490209.

Moving on to step 1:
31 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 31

Step 2:
31 can be fit into 49 1 times, resulting in a remainder of 18.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 31 from 49 and we're left with 18.
Append the next digit (0) from the dividend to 18 and continue with: 180 / 31

Advancing to step 3:
180 divided by 31 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 155 away from 180, we end up with 25.
Include the next digit (2) from the dividend after 25, then repeat: 252 / 31

Advancing to step 4:
When dividing 252 by 31, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 158.0
If we take 248 away from 252, we end up with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 31

Going ahead to step 5:
If we divide 40 by 31, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1581.0
Subtracting 31 from 40 leaves us with 9.
Take the next digit (9) from the dividend and append it to 9, then repeat: 99 / 31

Going ahead to step 6:
99 divided by 31 is 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 15813.0
The remainder is 6 after subtracting 93 from 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
60 divided by 31 is 1 with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 15813.1
If we take 31 away from 60, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 8:
If we divide 290 by 31, we get 9 and a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 15813.19
If we subtract 279 from 290, we get 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 9:
The number 31 fits into 110 3 times, leaving a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 15813.193
Subtract 93 from 110 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.

Moving on to step 10:
31 can be fit into 170 5 times, resulting in a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 15813.1935
Subtract 155 from 170 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
If we divide 150 by 31, we get 4 and a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 15813.19354
Subtracting 124 from 150 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 12:
260 divided by 31 is 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 15813.193548
The remainder is 12 after subtracting 248 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 13:
31 goes into 120 3 times with a remainder of 27.
The next digit of our result is 3. 
Result so far: 15813.1935483
If we take 93 away from 120, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 14:
If we divide 270 by 31, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 15813.19354838
Subtracting 248 from 270 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The quotient of the division is 15813.19354838, and the remainder is 2.2e-08.