We look at the division of 43011995 by 405 
The aim is to understand the frequency of 405 in 43011995.

Let's proceed to step 1:
405 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 405

Step 2:
The number 405 fits into 43 0 times, leaving a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Append the next digit (0) from the dividend to 43 and continue with: 430 / 405

Let's proceed to step 3:
405 can be fit into 430 1 times, resulting in a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 405 from 430 to get 25.
Grab the next digit (1) from the dividend, add it to 25, then carry on: 251 / 405

Step 4:
405 goes into 251 0 times with a remainder of 251.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtracting 0 from 251 leaves us with 251.
Include the next digit (1) from the dividend after 251, then repeat: 2511 / 405

Advancing to step 5:
If we divide 2511 by 405, we get 6 and a remainder of 81.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
If we subtract 2430 from 2511, we get 81.
Fetch the next digit (9) from the dividend, attach it to 81 and continue: 819 / 405

Moving on to step 6:
405 can be fit into 819 2 times, resulting in a remainder of 9.
The next digit of our result is 2. 
Result so far: 1062.0
Deduct 810 from 819 and we're left with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 405

Moving on to step 7:
The number 405 fits into 99 0 times, leaving a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 10620.0
If we take 0 away from 99, we end up with 99.
Append the next digit (5) from the dividend to 99 and continue with: 995 / 405

Let's proceed to step 8:
405 goes into 995 2 times with a remainder of 185.
The next digit of our result is 2. 
Result so far: 106202.0
If we subtract 810 from 995, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

On to step 9:
405 can be fit into 1850 4 times, resulting in a remainder of 230.
Put 4 as the next digit of the answer. 
Result so far: 106202.4
Subtracting 1620 from 1850 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 10:
405 goes into 2300 5 times with a remainder of 275.
Record the quotient 5 as the next digit in the result. 
Result so far: 106202.45
Subtracting 2025 from 2300 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Step 11:
405 goes into 2750 6 times with a remainder of 320.
Put 6 as the next digit of the answer. 
Result so far: 106202.456
Subtract 2430 from 2750 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Advancing to step 12:
The number 405 fits into 3200 7 times, leaving a remainder of 365.
Write down 7 as next digit of the result. 
Result so far: 106202.4567
Subtracting 2835 from 3200 leaves us 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.

Let's proceed to step 13:
When dividing 3650 by 405, we get 9 with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 106202.45679
Subtract 3645 from 3650 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 14:
405 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 106202.45679
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 15:
When dividing 500 by 405, we get 1 with a remainder of 95.
The number 1 becomes the next digit in our result. 
Result so far: 106202.4567901
Subtract 405 from 500 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 16:
If we divide 950 by 405, we get 2 and a remainder of 140.
The next digit of our result is 2. 
Result so far: 106202.45679012
The remainder is 140 after subtracting 810 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

In conclusion, the division gives 106202.45679012 with a balance of 1.4e-07.