451911 divided by 31 
The aim is to understand the frequency of 31 in 451911.

On to step 1:
When dividing 4 by 31, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 31

Going ahead to step 2:
If we divide 45 by 31, we get 1 and a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 31 from 45 to get 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 31

Step 3:
141 divided by 31 is 4 with a remainder of 17.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 17 after subtracting 124 from 141.
Fetch the next digit (9) from the dividend, attach it to 17 and continue: 179 / 31

Let's proceed to step 4:
31 can be fit into 179 5 times, resulting in a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 145.0
Subtracting 155 from 179 leaves us with 24.
Fetch the next digit (1) from the dividend, attach it to 24 and continue: 241 / 31

Let's proceed to step 5:
If we divide 241 by 31, we get 7 and a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 1457.0
The remainder is 24 after subtracting 217 from 241.
Bring next digit (1) of the dividend behind the 24 and repeat the process: 241 / 31

Let's proceed to step 6:
When dividing 241 by 31, we get 7 with a remainder of 24.
The number 7 becomes the next digit in our result. 
Result so far: 14577.0
The remainder is 24 after subtracting 217 from 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 7:
31 can be fit into 240 7 times, resulting in a remainder of 23.
Write down 7 as next digit of the result. 
Result so far: 14577.7
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.

Advancing to step 8:
If we divide 230 by 31, we get 7 and a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 14577.77
If we subtract 217 from 230, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

In conclusion, the division gives 14577.77 with a balance of 0.013.