We divide 91221684 by 539
The aim is to understand the frequency of 539 in 91221684.

Step 1:
9 divided by 539 is 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 539

Step 2:
539 can be fit into 91 0 times, resulting in a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Fetch the next digit (2) from the dividend, attach it to 91 and continue: 912 / 539

Let's proceed to step 3:
The number 539 fits into 912 1 times, leaving a remainder of 373.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 539 from 912 leaves us with 373.
Take the next digit (2) from the dividend and append it to 373, then repeat: 3732 / 539

Let's proceed to step 4:
3732 divided by 539 is 6 with a remainder of 498.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 3234 away from 3732, we end up with 498.
Grab the next digit (1) from the dividend, add it to 498, then carry on: 4981 / 539

Step 5:
4981 divided by 539 is 9 with a remainder of 130.
Write down 9 as next digit of the result. 
Result so far: 169.0
If we subtract 4851 from 4981, we get 130.
Include the next digit (6) from the dividend after 130, then repeat: 1306 / 539

Let's proceed to step 6:
539 goes into 1306 2 times with a remainder of 228.
The next digit of our result is 2. 
Result so far: 1692.0
If we subtract 1078 from 1306, we get 228.
Take the next digit (8) from the dividend and append it to 228, then repeat: 2288 / 539

Let's proceed to step 7:
If we divide 2288 by 539, we get 4 and a remainder of 132.
Record the quotient 4 as the next digit in the result. 
Result so far: 16924.0
The remainder is 132 after subtracting 2156 from 2288.
Grab the next digit (4) from the dividend, add it to 132, then carry on: 1324 / 539

Step 8:
1324 divided by 539 is 2 with a remainder of 246.
Put 2 as the next digit of the answer. 
Result so far: 169242.0
Subtract 1078 from 1324 to get 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Step 9:
If we divide 2460 by 539, we get 4 and a remainder of 304.
Use 4 as the next digit of our solution. 
Result so far: 169242.4
If we take 2156 away from 2460, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 10:
The number 539 fits into 3040 5 times, leaving a remainder of 345.
Put 5 as the next digit of the answer. 
Result so far: 169242.45
The remainder is 345 after subtracting 2695 from 3040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

On to step 11:
539 goes into 3450 6 times with a remainder of 216.
Record the quotient 6 as the next digit in the result. 
Result so far: 169242.456
Subtract 3234 from 3450 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 12:
2160 divided by 539 is 4 with a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 169242.4564
Subtract 2156 from 2160 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 13:
If we divide 40 by 539, we get 0 and a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 169242.4564
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.

Advancing to step 14:
If we divide 400 by 539, we get 0 and a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 169242.4564
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

The final outcome is 169242.4564, with a leftover of 4e-05.