We look at the division of 31200465 by 631 
The aim is to understand the frequency of 631 in 31200465.

Moving on to step 1:
The number 631 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 631

Let's proceed to step 2:
31 divided by 631 is 0 with a remainder of 31.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Include the next digit (2) from the dividend after 31, then repeat: 312 / 631

Let's proceed to step 3:
631 can be fit into 312 0 times, resulting in a remainder of 312.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 312, we get 312.
Include the next digit (0) from the dividend after 312, then repeat: 3120 / 631

Advancing to step 4:
631 goes into 3120 4 times with a remainder of 596.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 2524 from 3120, we get 596.
Bring next digit (0) of the dividend behind the 596 and repeat the process: 5960 / 631

Step 5:
The number 631 fits into 5960 9 times, leaving a remainder of 281.
The next digit of our result is 9. 
Result so far: 49.0
Subtract 5679 from 5960 to get 281.
Take the next digit (4) from the dividend and append it to 281, then repeat: 2814 / 631

Going ahead to step 6:
2814 divided by 631 is 4 with a remainder of 290.
Write down 4 as next digit of the result. 
Result so far: 494.0
Deduct 2524 from 2814 and we're left with 290.
Bring next digit (6) of the dividend behind the 290 and repeat the process: 2906 / 631

Advancing to step 7:
631 can be fit into 2906 4 times, resulting in a remainder of 382.
Use 4 as the next digit of our solution. 
Result so far: 4944.0
Deduct 2524 from 2906 and we're left with 382.
Include the next digit (5) from the dividend after 382, then repeat: 3825 / 631

Let's proceed to step 8:
631 can be fit into 3825 6 times, resulting in a remainder of 39.
Write down 6 as next digit of the result. 
Result so far: 49446.0
The remainder is 39 after subtracting 3786 from 3825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Let's proceed to step 9:
390 divided by 631 is 0 with a remainder of 390.
The next digit of our result is 0. 
Result so far: 49446.0
Deduct 0 from 390 and we're left with 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Going ahead to step 10:
631 goes into 3900 6 times with a remainder of 114.
Record the quotient 6 as the next digit in the result. 
Result so far: 49446.06
The remainder is 114 after subtracting 3786 from 3900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

On to step 11:
If we divide 1140 by 631, we get 1 and a remainder of 509.
Use 1 as the next digit of our solution. 
Result so far: 49446.061
If we subtract 631 from 1140, we get 509.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

Advancing to step 12:
631 goes into 5090 8 times with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 49446.0618
Subtract 5048 from 5090 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 13:
The number 631 fits into 420 0 times, leaving a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 49446.0618
Subtract 0 from 420 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 14:
631 goes into 4200 6 times with a remainder of 414.
Record the quotient 6 as the next digit in the result. 
Result so far: 49446.061806
Subtract 3786 from 4200 to get 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Going ahead to step 15:
4140 divided by 631 is 6 with a remainder of 354.
The number 6 becomes the next digit in our result. 
Result so far: 49446.0618066
If we subtract 3786 from 4140, we get 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

The final outcome is 49446.0618066, with a leftover of 3.54e-06.