We look at the division of 64172684 by 431 
The aim is to understand the frequency of 431 in 64172684.

Advancing to step 1:
The number 431 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 431

Moving on to step 2:
When dividing 64 by 431, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (1) from the dividend, add it to 64, then carry on: 641 / 431

Going ahead to step 3:
431 goes into 641 1 times with a remainder of 210.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 431 from 641 to get 210.
Bring next digit (7) of the dividend behind the 210 and repeat the process: 2107 / 431

Let's proceed to step 4:
431 goes into 2107 4 times with a remainder of 383.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
The remainder is 383 after subtracting 1724 from 2107.
Include the next digit (2) from the dividend after 383, then repeat: 3832 / 431

On to step 5:
If we divide 3832 by 431, we get 8 and a remainder of 384.
The next digit of our result is 8. 
Result so far: 148.0
If we subtract 3448 from 3832, we get 384.
Include the next digit (6) from the dividend after 384, then repeat: 3846 / 431

Let's proceed to step 6:
3846 divided by 431 is 8 with a remainder of 398.
Use 8 as the next digit of our solution. 
Result so far: 1488.0
Subtracting 3448 from 3846 leaves us with 398.
Append the next digit (8) from the dividend to 398 and continue with: 3988 / 431

Step 7:
3988 divided by 431 is 9 with a remainder of 109.
The next digit of our result is 9. 
Result so far: 14889.0
Subtract 3879 from 3988 to get 109.
Append the next digit (4) from the dividend to 109 and continue with: 1094 / 431

Going ahead to step 8:
If we divide 1094 by 431, we get 2 and a remainder of 232.
Record the quotient 2 as the next digit in the result. 
Result so far: 148892.0
The remainder is 232 after subtracting 862 from 1094.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Going ahead to step 9:
431 goes into 2320 5 times with a remainder of 165.
The next digit of our result is 5. 
Result so far: 148892.5
Deduct 2155 from 2320 and we're left with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 10:
The number 431 fits into 1650 3 times, leaving a remainder of 357.
Put 3 as the next digit of the answer. 
Result so far: 148892.53
Subtract 1293 from 1650 to get 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Step 11:
3570 divided by 431 is 8 with a remainder of 122.
Write down 8 as next digit of the result. 
Result so far: 148892.538
Subtracting 3448 from 3570 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 12:
431 goes into 1220 2 times with a remainder of 358.
Use 2 as the next digit of our solution. 
Result so far: 148892.5382
Deduct 862 from 1220 and we're left with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Step 13:
If we divide 3580 by 431, we get 8 and a remainder of 132.
Use 8 as the next digit of our solution. 
Result so far: 148892.53828
Subtract 3448 from 3580 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 14:
The number 431 fits into 1320 3 times, leaving a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 148892.538283
If we subtract 1293 from 1320, 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.

Moving on to step 15:
The number 431 fits into 270 0 times, leaving a remainder of 270.
The number 0 becomes the next digit in our result. 
Result so far: 148892.538283
Subtracting 0 from 270 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Moving on to step 16:
The number 431 fits into 2700 6 times, leaving a remainder of 114.
The next digit of our result is 6. 
Result so far: 148892.53828306
If we take 2586 away from 2700, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

In conclusion, the division gives 148892.53828306 with a balance of 1.14e-07.