Let's divide 146399 by 31
The aim is to understand the frequency of 31 in 146399.

On to step 1:
31 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 31

Moving on to step 2:
When dividing 14 by 31, we get 0 with a remainder of 14.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 31

Moving on to step 3:
31 goes into 146 4 times with a remainder of 22.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 124 from 146 to get 22.
Fetch the next digit (3) from the dividend, attach it to 22 and continue: 223 / 31

Moving on to step 4:
31 can be fit into 223 7 times, resulting in a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 47.0
Subtract 217 from 223 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 31

Let's proceed to step 5:
The number 31 fits into 69 2 times, leaving a remainder of 7.
Record the quotient 2 as the next digit in the result. 
Result so far: 472.0
If we take 62 away from 69, we end up with 7.
Fetch the next digit (9) from the dividend, attach it to 7 and continue: 79 / 31

Let's proceed to step 6:
31 goes into 79 2 times with a remainder of 17.
Write down 2 as next digit of the result. 
Result so far: 4722.0
Deduct 62 from 79 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Advancing to step 7:
When dividing 170 by 31, we get 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 4722.5
If we subtract 155 from 170, we 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.

Going ahead to step 8:
The number 31 fits into 150 4 times, leaving a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 4722.54
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.

On to step 9:
When dividing 260 by 31, we get 8 with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 4722.548
If we subtract 248 from 260, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 10:
31 can be fit into 120 3 times, resulting in a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 4722.5483
If we subtract 93 from 120, we 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.

Step 11:
When dividing 270 by 31, we get 8 with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 4722.54838
Deduct 248 from 270 and we're left 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.

Let's proceed to step 12:
The number 31 fits into 220 7 times, leaving a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 4722.548387
If we take 217 away from 220, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
The number 31 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 4722.548387
Subtracting 0 from 30 leaves us 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.

Moving on to step 14:
The number 31 fits into 300 9 times, leaving a remainder of 21.
Write down 9 as next digit of the result. 
Result so far: 4722.54838709
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.

In conclusion, the division gives 4722.54838709 with a balance of 2.1e-08.