77658802 ÷ 43 
The aim is to understand the frequency of 43 in 77658802.

Let's proceed to step 1:
43 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 43

Moving on to step 2:
43 can be fit into 77 1 times, resulting in a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 34 after subtracting 43 from 77.
Take the next digit (6) from the dividend and append it to 34, then repeat: 346 / 43

Let's proceed to step 3:
346 divided by 43 is 8 with a remainder of 2.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Subtracting 344 from 346 leaves us with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 43

Step 4:
43 can be fit into 25 0 times, resulting in a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 180.0
Subtract 0 from 25 to get 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 43

On to step 5:
43 goes into 258 6 times with a remainder of 0.
Put 6 as the next digit of the answer. 
Result so far: 1806.0
Subtract 258 from 258 to get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 43

On to step 6:
If we divide 8 by 43, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 18060.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 43

Let's proceed to step 7:
If we divide 80 by 43, we get 1 and a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 180601.0
If we subtract 43 from 80, we get 37.
Append the next digit (2) from the dividend to 37 and continue with: 372 / 43

Let's proceed to step 8:
43 goes into 372 8 times with a remainder of 28.
Record the quotient 8 as the next digit in the result. 
Result so far: 1806018.0
Deduct 344 from 372 and we're left with 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 9:
When dividing 280 by 43, we get 6 with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 1806018.6
The remainder is 22 after subtracting 258 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 10:
43 goes into 220 5 times with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 1806018.65
If we subtract 215 from 220, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 11:
If we divide 50 by 43, we get 1 and a remainder of 7.
The number 1 becomes the next digit in our result. 
Result so far: 1806018.651
Subtract 43 from 50 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 12:
If we divide 70 by 43, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1806018.6511
Deduct 43 from 70 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final outcome is 1806018.6511, with a leftover of 0.00027.