43539 divided by 97 
The aim is to understand the frequency of 97 in 43539.

Going ahead to step 1:
97 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 97

On to step 2:
The number 97 fits into 43 0 times, leaving a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 43 after subtracting 0 from 43.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 97

Advancing to step 3:
When dividing 435 by 97, we get 4 with a remainder of 47.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 47 after subtracting 388 from 435.
Take the next digit (3) from the dividend and append it to 47, then repeat: 473 / 97

On to step 4:
The number 97 fits into 473 4 times, leaving a remainder of 85.
Write down 4 as next digit of the result. 
Result so far: 44.0
Subtract 388 from 473 to get 85.
Grab the next digit (9) from the dividend, add it to 85, then carry on: 859 / 97

On to step 5:
97 goes into 859 8 times with a remainder of 83.
Put 8 as the next digit of the answer. 
Result so far: 448.0
If we subtract 776 from 859, we get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Let's proceed to step 6:
97 can be fit into 830 8 times, resulting in a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 448.8
If we subtract 776 from 830, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 7:
The number 97 fits into 540 5 times, leaving a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 448.85
If we take 485 away from 540, we end up with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 8:
97 goes into 550 5 times with a remainder of 65.
The next digit of our result is 5. 
Result so far: 448.855
Subtract 485 from 550 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 448.855 and a remainder of 0.0065.