579723 divided by 43 
The aim is to understand the frequency of 43 in 579723.

Step 1:
When dividing 5 by 43, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 43

Moving on to step 2:
43 can be fit into 57 1 times, resulting in a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 43 from 57 and we're left with 14.
Fetch the next digit (9) from the dividend, attach it to 14 and continue: 149 / 43

Going ahead to step 3:
The number 43 fits into 149 3 times, leaving a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 13.0
If we take 129 away from 149, we end up with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 43

Moving on to step 4:
207 divided by 43 is 4 with a remainder of 35.
Put 4 as the next digit of the answer. 
Result so far: 134.0
The remainder is 35 after subtracting 172 from 207.
Bring next digit (2) of the dividend behind the 35 and repeat the process: 352 / 43

On to step 5:
43 can be fit into 352 8 times, resulting in a remainder of 8.
The next digit of our result is 8. 
Result so far: 1348.0
The remainder is 8 after subtracting 344 from 352.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 43

Let's proceed to step 6:
43 can be fit into 83 1 times, resulting in a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 13481.0
The remainder is 40 after subtracting 43 from 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 7:
If we divide 400 by 43, we get 9 and a remainder of 13.
The next digit of our result is 9. 
Result so far: 13481.9
If we take 387 away from 400, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 8:
If we divide 130 by 43, we get 3 and a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 13481.93
If we take 129 away from 130, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 9:
When dividing 10 by 43, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 13481.93
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 10:
When dividing 100 by 43, we get 2 with a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 13481.9302
If we subtract 86 from 100, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
140 divided by 43 is 3 with a remainder of 11.
Put 3 as the next digit of the answer. 
Result so far: 13481.93023
Subtracting 129 from 140 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 12:
43 can be fit into 110 2 times, resulting in a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 13481.930232
Subtracting 86 from 110 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 13:
240 divided by 43 is 5 with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 13481.9302325
If we subtract 215 from 240, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 14:
250 divided by 43 is 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 13481.93023255
Subtract 215 from 250 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final result is 13481.93023255 with a remainder of 3.5e-08.