563280 divided by 31 
The aim is to understand the frequency of 31 in 563280.

Step 1:
If we divide 5 by 31, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 31

Going ahead to step 2:
31 goes into 56 1 times with a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 25 after subtracting 31 from 56.
Append the next digit (3) from the dividend to 25 and continue with: 253 / 31

Advancing to step 3:
When dividing 253 by 31, we get 8 with a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
If we take 248 away from 253, we end up with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 31

Advancing to step 4:
The number 31 fits into 52 1 times, leaving a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 181.0
Subtract 31 from 52 to get 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 31

Let's proceed to step 5:
If we divide 218 by 31, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 1817.0
Subtract 217 from 218 to get 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 31

Let's proceed to step 6:
31 can be fit into 10 0 times, resulting in a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 18170.0
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 7:
100 divided by 31 is 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 18170.3
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 8:
If we divide 70 by 31, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 18170.32
Deduct 62 from 70 and we're left 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.

Let's proceed to step 9:
When dividing 80 by 31, we get 2 with a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 18170.322
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.

After the division, we end up with 18170.322 and a remainder of 0.0018.