730214 divided by 31 
The aim is to understand the frequency of 31 in 730214.

Step 1:
When dividing 7 by 31, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 31

On to step 2:
73 divided by 31 is 2 with a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtract 62 from 73 to get 11.
Take the next digit (0) from the dividend and append it to 11, then repeat: 110 / 31

Let's proceed to step 3:
31 goes into 110 3 times with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 23.0
If we take 93 away from 110, we end up with 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 31

Step 4:
31 can be fit into 172 5 times, resulting in a remainder of 17.
The next digit of our result is 5. 
Result so far: 235.0
Subtracting 155 from 172 leaves us with 17.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 31

Step 5:
If we divide 171 by 31, we get 5 and a remainder of 16.
The next digit of our result is 5. 
Result so far: 2355.0
Deduct 155 from 171 and we're left with 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 31

Let's proceed to step 6:
The number 31 fits into 164 5 times, leaving a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 23555.0
Subtract 155 from 164 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 7:
If we divide 90 by 31, we get 2 and a remainder of 28.
The number 2 becomes the next digit in our result. 
Result so far: 23555.2
The remainder is 28 after subtracting 62 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 8:
If we divide 280 by 31, we get 9 and a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 23555.29
Deduct 279 from 280 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.

Going ahead to step 9:
When dividing 10 by 31, we get 0 with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 23555.29
The remainder is 10 after subtracting 0 from 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 10:
31 can be fit into 100 3 times, resulting in a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 23555.2903
Deduct 93 from 100 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 11:
31 can be fit into 70 2 times, resulting in a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 23555.29032
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.

Moving on to step 12:
If we divide 80 by 31, we get 2 and a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 23555.290322
Subtracting 62 from 80 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final outcome is 23555.290322, with a leftover of 1.8e-06.