Let's divide 339783 by 43
The aim is to understand the frequency of 43 in 339783.

On to step 1:
When dividing 3 by 43, we get 0 with a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 43

On to step 2:
The number 43 fits into 33 0 times, leaving a remainder of 33.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 33 and we're left with 33.
Append the next digit (9) from the dividend to 33 and continue with: 339 / 43

On to step 3:
43 goes into 339 7 times with a remainder of 38.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 301 from 339 to get 38.
Grab the next digit (7) from the dividend, add it to 38, then carry on: 387 / 43

Let's proceed to step 4:
43 can be fit into 387 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 79.0
If we take 387 away from 387, we end up with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 43

Advancing to step 5:
If we divide 8 by 43, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 790.0
If we take 0 away from 8, we end up with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 43

Advancing to step 6:
If we divide 83 by 43, we get 1 and a remainder of 40.
The number 1 becomes the next digit in our result. 
Result so far: 7901.0
If we take 43 away from 83, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 7:
400 divided by 43 is 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 7901.9
If we subtract 387 from 400, we get 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 8:
43 goes into 130 3 times with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 7901.93
Deduct 129 from 130 and we're left 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.

Let's proceed to step 9:
10 divided by 43 is 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 7901.93
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
The number 43 fits into 100 2 times, leaving a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 7901.9302
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.

Going ahead to step 11:
140 divided by 43 is 3 with a remainder of 11.
The number 3 becomes the next digit in our result. 
Result so far: 7901.93023
If we subtract 129 from 140, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 12:
The number 43 fits into 110 2 times, leaving a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 7901.930232
The remainder is 24 after subtracting 86 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 13:
The number 43 fits into 240 5 times, leaving a remainder of 25.
The next digit of our result is 5. 
Result so far: 7901.9302325
Subtracting 215 from 240 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 14:
The number 43 fits into 250 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 7901.93023255
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 outcome is 7901.93023255, with a leftover of 3.5e-08.