812745 divided by 43 
The aim is to understand the frequency of 43 in 812745.

Let's proceed to step 1:
The number 43 fits into 8 0 times, leaving a remainder of 8.
Use 0 as the next digit of our solution. 
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 / 43

On to step 2:
When dividing 81 by 43, we get 1 with a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 43 from 81 to get 38.
Include the next digit (2) from the dividend after 38, then repeat: 382 / 43

Step 3:
43 goes into 382 8 times with a remainder of 38.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtracting 344 from 382 leaves us with 38.
Include the next digit (7) from the dividend after 38, then repeat: 387 / 43

Going ahead to step 4:
387 divided by 43 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 189.0
Deduct 387 from 387 and we're left with 0.
Fetch the next digit (4) from the dividend, attach it to 0 and continue: 4 / 43

Moving on to step 5:
43 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 1890.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 43

Moving on to step 6:
43 can be fit into 45 1 times, resulting in a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 18901.0
Subtract 43 from 45 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
If we divide 20 by 43, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 18901.0
Deduct 0 from 20 and we're left 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.

Advancing to step 8:
200 divided by 43 is 4 with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 18901.04
If we subtract 172 from 200, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 9:
43 goes into 280 6 times with a remainder of 22.
The next digit of our result is 6. 
Result so far: 18901.046
Subtracting 258 from 280 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 10:
The number 43 fits into 220 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 18901.0465
Subtracting 215 from 220 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
43 goes into 50 1 times with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 18901.04651
If we subtract 43 from 50, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Let's proceed to step 12:
43 goes into 70 1 times with a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 18901.046511
If we subtract 43 from 70, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Our division results in 18901.046511 with a remaining 2.7e-06.