We're dividing 90787843 by 43 
The aim is to understand the frequency of 43 in 90787843.

Moving on to step 1:
The number 43 fits into 9 0 times, leaving a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 43

On to step 2:
90 divided by 43 is 2 with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 86 from 90 to get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 43

Advancing to step 3:
When dividing 47 by 43, we get 1 with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtract 43 from 47 to get 4.
Append the next digit (8) from the dividend to 4 and continue with: 48 / 43

Step 4:
When dividing 48 by 43, we get 1 with a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 211.0
If we take 43 away from 48, we end up with 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 43

Going ahead to step 5:
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: 2111.0
If we take 43 away from 57, we end up with 14.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 43

Step 6:
When dividing 148 by 43, we get 3 with a remainder of 19.
The next digit of our result is 3. 
Result so far: 21113.0
Deduct 129 from 148 and we're left with 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 43

Going ahead to step 7:
The number 43 fits into 194 4 times, leaving a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 211134.0
Subtracting 172 from 194 leaves us with 22.
Include the next digit (3) from the dividend after 22, then repeat: 223 / 43

Let's proceed to step 8:
43 can be fit into 223 5 times, resulting in a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 2111345.0
Subtracting 215 from 223 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 9:
If we divide 80 by 43, we get 1 and a remainder of 37.
Put 1 as the next digit of the answer. 
Result so far: 2111345.1
Subtract 43 from 80 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 10:
43 goes into 370 8 times with a remainder of 26.
Record the quotient 8 as the next digit in the result. 
Result so far: 2111345.18
If we take 344 away from 370, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 11:
If we divide 260 by 43, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 2111345.186
If we subtract 258 from 260, we 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.

Advancing to step 12:
20 divided by 43 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 2111345.186
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
The number 43 fits into 200 4 times, leaving a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 2111345.18604
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.

On to step 14:
If we divide 280 by 43, we get 6 and a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 2111345.186046
Deduct 258 from 280 and we're left 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.

Step 15:
The number 43 fits into 220 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 2111345.1860465
Deduct 215 from 220 and we're left 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.

Let's proceed to step 16:
43 can be fit into 50 1 times, resulting in a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 2111345.18604651
Subtracting 43 from 50 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

In conclusion, the division gives 2111345.18604651 with a balance of 7e-09.