We look at the division of 97201323 by 151 
The aim is to understand the frequency of 151 in 97201323.

Step 1:
The number 151 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (7) from the dividend to 9 and continue with: 97 / 151

Going ahead to step 2:
The number 151 fits into 97 0 times, leaving a remainder of 97.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 97 to get 97.
Take the next digit (2) from the dividend and append it to 97, then repeat: 972 / 151

Let's proceed to step 3:
972 divided by 151 is 6 with a remainder of 66.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 906 from 972, we get 66.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 151

Moving on to step 4:
When dividing 660 by 151, we get 4 with a remainder of 56.
Use 4 as the next digit of our solution. 
Result so far: 64.0
The remainder is 56 after subtracting 604 from 660.
Bring next digit (1) of the dividend behind the 56 and repeat the process: 561 / 151

Step 5:
When dividing 561 by 151, we get 3 with a remainder of 108.
The next digit of our result is 3. 
Result so far: 643.0
If we take 453 away from 561, we end up with 108.
Include the next digit (3) from the dividend after 108, then repeat: 1083 / 151

Let's proceed to step 6:
The number 151 fits into 1083 7 times, leaving a remainder of 26.
The number 7 becomes the next digit in our result. 
Result so far: 6437.0
The remainder is 26 after subtracting 1057 from 1083.
Fetch the next digit (2) from the dividend, attach it to 26 and continue: 262 / 151

Let's proceed to step 7:
262 divided by 151 is 1 with a remainder of 111.
The number 1 becomes the next digit in our result. 
Result so far: 64371.0
If we take 151 away from 262, we end up with 111.
Append the next digit (3) from the dividend to 111 and continue with: 1113 / 151

Step 8:
151 can be fit into 1113 7 times, resulting in a remainder of 56.
Put 7 as the next digit of the answer. 
Result so far: 643717.0
Subtract 1057 from 1113 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 9:
If we divide 560 by 151, we get 3 and a remainder of 107.
Write down 3 as next digit of the result. 
Result so far: 643717.3
If we take 453 away from 560, we end up with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Step 10:
1070 divided by 151 is 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 643717.37
If we take 1057 away from 1070, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 11:
When dividing 130 by 151, we get 0 with a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 643717.37
If we take 0 away from 130, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 12:
When dividing 1300 by 151, we get 8 with a remainder of 92.
Write down 8 as next digit of the result. 
Result so far: 643717.3708
Deduct 1208 from 1300 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 13:
151 goes into 920 6 times with a remainder of 14.
Write down 6 as next digit of the result. 
Result so far: 643717.37086
The remainder is 14 after subtracting 906 from 920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 14:
When dividing 140 by 151, we get 0 with a remainder of 140.
The next digit of our result is 0. 
Result so far: 643717.37086
If we take 0 away from 140, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 15:
The number 151 fits into 1400 9 times, leaving a remainder of 41.
The next digit of our result is 9. 
Result so far: 643717.3708609
Subtracting 1359 from 1400 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 16:
When dividing 410 by 151, we get 2 with a remainder of 108.
The next digit of our result is 2. 
Result so far: 643717.37086092
Subtract 302 from 410 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

The final result is 643717.37086092 with a remainder of 1.08e-07.