We look at the division of 378830 by 43 
The aim is to understand the frequency of 43 in 378830.

Advancing to step 1:
3 divided by 43 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 43

Advancing to step 2:
37 divided by 43 is 0 with a remainder of 37.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 37, we end up with 37.
Fetch the next digit (8) from the dividend, attach it to 37 and continue: 378 / 43

Going ahead to step 3:
378 divided by 43 is 8 with a remainder of 34.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 344 from 378 to get 34.
Append the next digit (8) from the dividend to 34 and continue with: 348 / 43

Moving on to step 4:
If we divide 348 by 43, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
If we take 344 away from 348, we end up with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 43

Let's proceed to step 5:
43 divided by 43 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 881.0
If we take 43 away from 43, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 43

Step 6:
43 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 8810.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
43 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 8810.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 43, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8810.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 8810.0, and the remainder is 0.0.