We look at the division of 64551774 by 381 
The aim is to understand the frequency of 381 in 64551774.

Let's proceed to step 1:
When dividing 6 by 381, we get 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 381

Advancing to step 2:
381 can be fit into 64 0 times, resulting in 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.
Append the next digit (5) from the dividend to 64 and continue with: 645 / 381

Let's proceed to step 3:
645 divided by 381 is 1 with a remainder of 264.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 264 after subtracting 381 from 645.
Take the next digit (5) from the dividend and append it to 264, then repeat: 2645 / 381

Step 4:
381 goes into 2645 6 times with a remainder of 359.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 2286 from 2645, we get 359.
Include the next digit (1) from the dividend after 359, then repeat: 3591 / 381

Step 5:
381 goes into 3591 9 times with a remainder of 162.
Write down 9 as next digit of the result. 
Result so far: 169.0
Deduct 3429 from 3591 and we're left with 162.
Take the next digit (7) from the dividend and append it to 162, then repeat: 1627 / 381

Step 6:
If we divide 1627 by 381, we get 4 and a remainder of 103.
The number 4 becomes the next digit in our result. 
Result so far: 1694.0
Subtracting 1524 from 1627 leaves us with 103.
Append the next digit (7) from the dividend to 103 and continue with: 1037 / 381

On to step 7:
If we divide 1037 by 381, we get 2 and a remainder of 275.
The next digit of our result is 2. 
Result so far: 16942.0
Subtract 762 from 1037 to get 275.
Append the next digit (4) from the dividend to 275 and continue with: 2754 / 381

Step 8:
381 can be fit into 2754 7 times, resulting in a remainder of 87.
Write down 7 as next digit of the result. 
Result so far: 169427.0
Subtracting 2667 from 2754 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 9:
381 goes into 870 2 times with a remainder of 108.
Write down 2 as next digit of the result. 
Result so far: 169427.2
Subtract 762 from 870 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.

Step 10:
381 goes into 1080 2 times with a remainder of 318.
Write down 2 as next digit of the result. 
Result so far: 169427.22
If we take 762 away from 1080, we end up with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

After the division, we end up with 169427.22 and a remainder of 0.318.