We look at the division of 456537 by 43 
The aim is to understand the frequency of 43 in 456537.

Let's proceed to step 1:
4 divided by 43 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 43

Going ahead to step 2:
43 goes into 45 1 times with a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 43 from 45 leaves us with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 43

Step 3:
When dividing 26 by 43, we get 0 with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 26 and we're left with 26.
Include the next digit (5) from the dividend after 26, then repeat: 265 / 43

Moving on to step 4:
When dividing 265 by 43, we get 6 with a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
Subtracting 258 from 265 leaves us with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 43

Moving on to step 5:
73 divided by 43 is 1 with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 1061.0
Subtract 43 from 73 to get 30.
Fetch the next digit (7) from the dividend, attach it to 30 and continue: 307 / 43

Moving on to step 6:
The number 43 fits into 307 7 times, leaving a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 10617.0
The remainder is 6 after subtracting 301 from 307.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
43 can be fit into 60 1 times, resulting in a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 10617.1
If we subtract 43 from 60, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 8:
43 can be fit into 170 3 times, resulting in a remainder of 41.
Use 3 as the next digit of our solution. 
Result so far: 10617.13
Subtract 129 from 170 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Advancing to step 9:
If we divide 410 by 43, we get 9 and a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 10617.139
Subtract 387 from 410 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 10:
When dividing 230 by 43, we get 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 10617.1395
Deduct 215 from 230 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 11:
43 can be fit into 150 3 times, resulting in a remainder of 21.
The next digit of our result is 3. 
Result so far: 10617.13953
Subtract 129 from 150 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 12:
When dividing 210 by 43, we get 4 with a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 10617.139534
If we subtract 172 from 210, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 13:
43 goes into 380 8 times with a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 10617.1395348
If we subtract 344 from 380, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 14:
The number 43 fits into 360 8 times, leaving a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 10617.13953488
If we subtract 344 from 360, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 10617.13953488 and a remainder of 1.6e-08.