We're dividing 8181331 by 430 
The aim is to understand the frequency of 430 in 8181331.

Step 1:
If we divide 8 by 430, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 430

Going ahead to step 2:
81 divided by 430 is 0 with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Grab the next digit (8) from the dividend, add it to 81, then carry on: 818 / 430

Let's proceed to step 3:
430 can be fit into 818 1 times, resulting in a remainder of 388.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 430 away from 818, we end up with 388.
Bring next digit (1) of the dividend behind the 388 and repeat the process: 3881 / 430

Step 4:
When dividing 3881 by 430, we get 9 with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 19.0
Subtracting 3870 from 3881 leaves us with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 430

On to step 5:
If we divide 113 by 430, we get 0 and a remainder of 113.
Put 0 as the next digit of the answer. 
Result so far: 190.0
If we take 0 away from 113, we end up with 113.
Fetch the next digit (3) from the dividend, attach it to 113 and continue: 1133 / 430

Let's proceed to step 6:
1133 divided by 430 is 2 with a remainder of 273.
Use 2 as the next digit of our solution. 
Result so far: 1902.0
The remainder is 273 after subtracting 860 from 1133.
Bring next digit (1) of the dividend behind the 273 and repeat the process: 2731 / 430

Moving on to step 7:
2731 divided by 430 is 6 with a remainder of 151.
The number 6 becomes the next digit in our result. 
Result so far: 19026.0
Subtract 2580 from 2731 to get 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Step 8:
430 can be fit into 1510 3 times, resulting in a remainder of 220.
Write down 3 as next digit of the result. 
Result so far: 19026.3
Deduct 1290 from 1510 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 9:
When dividing 2200 by 430, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 19026.35
Subtracting 2150 from 2200 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
When dividing 500 by 430, we get 1 with a remainder of 70.
Use 1 as the next digit of our solution. 
Result so far: 19026.351
The remainder is 70 after subtracting 430 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 11:
When dividing 700 by 430, we get 1 with a remainder of 270.
The next digit of our result is 1. 
Result so far: 19026.3511
If we take 430 away from 700, we end up 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.

The final outcome is 19026.3511, with a leftover of 0.0027.