We're dividing 81479120 by 381 
The aim is to understand the frequency of 381 in 81479120.

Going ahead to step 1:
The number 381 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 381

Step 2:
The number 381 fits into 81 0 times, leaving a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Append the next digit (4) from the dividend to 81 and continue with: 814 / 381

Let's proceed to step 3:
When dividing 814 by 381, we get 2 with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 762 from 814 and we're left with 52.
Fetch the next digit (7) from the dividend, attach it to 52 and continue: 527 / 381

Let's proceed to step 4:
The number 381 fits into 527 1 times, leaving a remainder of 146.
The next digit of our result is 1. 
Result so far: 21.0
Subtract 381 from 527 to get 146.
Bring next digit (9) of the dividend behind the 146 and repeat the process: 1469 / 381

Let's proceed to step 5:
1469 divided by 381 is 3 with a remainder of 326.
Record the quotient 3 as the next digit in the result. 
Result so far: 213.0
Subtracting 1143 from 1469 leaves us with 326.
Bring next digit (1) of the dividend behind the 326 and repeat the process: 3261 / 381

Moving on to step 6:
381 can be fit into 3261 8 times, resulting in a remainder of 213.
Use 8 as the next digit of our solution. 
Result so far: 2138.0
Subtracting 3048 from 3261 leaves us with 213.
Bring next digit (2) of the dividend behind the 213 and repeat the process: 2132 / 381

Let's proceed to step 7:
381 goes into 2132 5 times with a remainder of 227.
Record the quotient 5 as the next digit in the result. 
Result so far: 21385.0
The remainder is 227 after subtracting 1905 from 2132.
Append the next digit (0) from the dividend to 227 and continue with: 2270 / 381

On to step 8:
When dividing 2270 by 381, we get 5 with a remainder of 365.
Record the quotient 5 as the next digit in the result. 
Result so far: 213855.0
Deduct 1905 from 2270 and we're left with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Moving on to step 9:
381 can be fit into 3650 9 times, resulting in a remainder of 221.
Use 9 as the next digit of our solution. 
Result so far: 213855.9
Subtracting 3429 from 3650 leaves us with 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2210, and continue the process.

Moving on to step 10:
2210 divided by 381 is 5 with a remainder of 305.
Write down 5 as next digit of the result. 
Result so far: 213855.95
The remainder is 305 after subtracting 1905 from 2210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Advancing to step 11:
The number 381 fits into 3050 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 213855.958
Subtracting 3048 from 3050 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 12:
When dividing 20 by 381, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 213855.958
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
381 goes into 200 0 times with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 213855.958
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Our division results in 213855.958 with a remaining 0.0002.