We look at the division of 9180887 by 431 
The aim is to understand the frequency of 431 in 9180887.

Going ahead to step 1:
When dividing 9 by 431, we get 0 with 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.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 431

Advancing to step 2:
91 divided by 431 is 0 with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Take the next digit (8) from the dividend and append it to 91, then repeat: 918 / 431

On to step 3:
918 divided by 431 is 2 with a remainder of 56.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we subtract 862 from 918, we get 56.
Take the next digit (0) from the dividend and append it to 56, then repeat: 560 / 431

Going ahead to step 4:
431 goes into 560 1 times with a remainder of 129.
The number 1 becomes the next digit in our result. 
Result so far: 21.0
The remainder is 129 after subtracting 431 from 560.
Append the next digit (8) from the dividend to 129 and continue with: 1298 / 431

On to step 5:
If we divide 1298 by 431, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 213.0
Subtract 1293 from 1298 to get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 431

On to step 6:
58 divided by 431 is 0 with a remainder of 58.
Write down 0 as next digit of the result. 
Result so far: 2130.0
Deduct 0 from 58 and we're left with 58.
Grab the next digit (7) from the dividend, add it to 58, then carry on: 587 / 431

Advancing to step 7:
587 divided by 431 is 1 with a remainder of 156.
Use 1 as the next digit of our solution. 
Result so far: 21301.0
If we take 431 away from 587, we end up with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Let's proceed to step 8:
431 goes into 1560 3 times with a remainder of 267.
Use 3 as the next digit of our solution. 
Result so far: 21301.3
If we subtract 1293 from 1560, we get 267.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2670, and continue the process.

Step 9:
431 goes into 2670 6 times with a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 21301.36
If we subtract 2586 from 2670, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 10:
The number 431 fits into 840 1 times, leaving a remainder of 409.
Put 1 as the next digit of the answer. 
Result so far: 21301.361
If we take 431 away from 840, we end up with 409.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4090, and continue the process.

On to step 11:
When dividing 4090 by 431, we get 9 with a remainder of 211.
The number 9 becomes the next digit in our result. 
Result so far: 21301.3619
If we subtract 3879 from 4090, we get 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Step 12:
When dividing 2110 by 431, we get 4 with a remainder of 386.
Put 4 as the next digit of the answer. 
Result so far: 21301.36194
Deduct 1724 from 2110 and we're left with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Going ahead to step 13:
When dividing 3860 by 431, we get 8 with a remainder of 412.
Use 8 as the next digit of our solution. 
Result so far: 21301.361948
Deduct 3448 from 3860 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

On to step 14:
The number 431 fits into 4120 9 times, leaving a remainder of 241.
Record the quotient 9 as the next digit in the result. 
Result so far: 21301.3619489
The remainder is 241 after subtracting 3879 from 4120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Advancing to step 15:
431 can be fit into 2410 5 times, resulting in a remainder of 255.
Put 5 as the next digit of the answer. 
Result so far: 21301.36194895
If we subtract 2155 from 2410, we get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

In conclusion, the division gives 21301.36194895 with a balance of 2.55e-07.