We look at the division of 96394398 by 631 
The aim is to understand the frequency of 631 in 96394398.

Advancing to step 1:
9 divided by 631 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 631

Moving on to step 2:
631 goes into 96 0 times with a remainder of 96.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 96, we end up with 96.
Append the next digit (3) from the dividend to 96 and continue with: 963 / 631

Step 3:
631 goes into 963 1 times with a remainder of 332.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 332 after subtracting 631 from 963.
Grab the next digit (9) from the dividend, add it to 332, then carry on: 3329 / 631

On to step 4:
631 goes into 3329 5 times with a remainder of 174.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtracting 3155 from 3329 leaves us with 174.
Fetch the next digit (4) from the dividend, attach it to 174 and continue: 1744 / 631

On to step 5:
If we divide 1744 by 631, we get 2 and a remainder of 482.
Use 2 as the next digit of our solution. 
Result so far: 152.0
Deduct 1262 from 1744 and we're left with 482.
Include the next digit (3) from the dividend after 482, then repeat: 4823 / 631

Step 6:
631 goes into 4823 7 times with a remainder of 406.
Record the quotient 7 as the next digit in the result. 
Result so far: 1527.0
Subtract 4417 from 4823 to get 406.
Fetch the next digit (9) from the dividend, attach it to 406 and continue: 4069 / 631

Advancing to step 7:
The number 631 fits into 4069 6 times, leaving a remainder of 283.
Put 6 as the next digit of the answer. 
Result so far: 15276.0
The remainder is 283 after subtracting 3786 from 4069.
Fetch the next digit (8) from the dividend, attach it to 283 and continue: 2838 / 631

Advancing to step 8:
If we divide 2838 by 631, we get 4 and a remainder of 314.
Record the quotient 4 as the next digit in the result. 
Result so far: 152764.0
Deduct 2524 from 2838 and we're left with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Moving on to step 9:
If we divide 3140 by 631, we get 4 and a remainder of 616.
The next digit of our result is 4. 
Result so far: 152764.4
If we take 2524 away from 3140, we end up with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Moving on to step 10:
If we divide 6160 by 631, we get 9 and a remainder of 481.
Use 9 as the next digit of our solution. 
Result so far: 152764.49
If we take 5679 away from 6160, we end up with 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Step 11:
If we divide 4810 by 631, we get 7 and a remainder of 393.
Write down 7 as next digit of the result. 
Result so far: 152764.497
Subtracting 4417 from 4810 leaves us with 393.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3930, and continue the process.

Let's proceed to step 12:
The number 631 fits into 3930 6 times, leaving a remainder of 144.
Use 6 as the next digit of our solution. 
Result so far: 152764.4976
If we take 3786 away from 3930, we end up with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Advancing to step 13:
The number 631 fits into 1440 2 times, leaving a remainder of 178.
Use 2 as the next digit of our solution. 
Result so far: 152764.49762
If we subtract 1262 from 1440, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

On to step 14:
1780 divided by 631 is 2 with a remainder of 518.
Use 2 as the next digit of our solution. 
Result so far: 152764.497622
Subtracting 1262 from 1780 leaves us with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

The final result is 152764.497622 with a remainder of 5.18e-05.