We're dividing 520316 by 43 
The aim is to understand the frequency of 43 in 520316.

Step 1:
43 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (2) from the dividend, add it to 5, then carry on: 52 / 43

Going ahead to step 2:
52 divided by 43 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 43 from 52 to get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 43

Step 3:
43 goes into 90 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 4 after subtracting 86 from 90.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 43

Moving on to step 4:
The number 43 fits into 43 1 times, leaving a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we take 43 away from 43, we end up with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 43

On to step 5:
1 divided by 43 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 1210.0
Subtract 0 from 1 to get 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 43

On to step 6:
16 divided by 43 is 0 with a remainder of 16.
The next digit of our result is 0. 
Result so far: 12100.0
If we take 0 away from 16, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 7:
160 divided by 43 is 3 with a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 12100.3
The remainder is 31 after subtracting 129 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 8:
The number 43 fits into 310 7 times, leaving a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 12100.37
Subtracting 301 from 310 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 9:
When dividing 90 by 43, we get 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 12100.372
Subtract 86 from 90 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
When dividing 40 by 43, we get 0 with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 12100.372
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
When dividing 400 by 43, we get 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 12100.37209
Deduct 387 from 400 and we're left 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.

On to step 12:
When dividing 130 by 43, we get 3 with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 12100.372093
Subtracting 129 from 130 leaves us 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.

Step 13:
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: 12100.372093
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 14:
When dividing 100 by 43, we get 2 with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 12100.37209302
Deduct 86 from 100 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

In conclusion, the division gives 12100.37209302 with a balance of 1.4e-08.