We're dividing 81958555 by 539 
The aim is to understand the frequency of 539 in 81958555.

Advancing to step 1:
The number 539 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 539

Step 2:
539 goes into 81 0 times with a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Fetch the next digit (9) from the dividend, attach it to 81 and continue: 819 / 539

On to step 3:
When dividing 819 by 539, we get 1 with a remainder of 280.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 539 from 819 and we're left with 280.
Grab the next digit (5) from the dividend, add it to 280, then carry on: 2805 / 539

On to step 4:
When dividing 2805 by 539, we get 5 with a remainder of 110.
Put 5 as the next digit of the answer. 
Result so far: 15.0
The remainder is 110 after subtracting 2695 from 2805.
Bring next digit (8) of the dividend behind the 110 and repeat the process: 1108 / 539

Moving on to step 5:
The number 539 fits into 1108 2 times, leaving a remainder of 30.
Record the quotient 2 as the next digit in the result. 
Result so far: 152.0
If we take 1078 away from 1108, we end up with 30.
Bring next digit (5) of the dividend behind the 30 and repeat the process: 305 / 539

On to step 6:
The number 539 fits into 305 0 times, leaving a remainder of 305.
Record the quotient 0 as the next digit in the result. 
Result so far: 1520.0
Subtract 0 from 305 to get 305.
Take the next digit (5) from the dividend and append it to 305, then repeat: 3055 / 539

Advancing to step 7:
539 can be fit into 3055 5 times, resulting in a remainder of 360.
Write down 5 as next digit of the result. 
Result so far: 15205.0
The remainder is 360 after subtracting 2695 from 3055.
Append the next digit (5) from the dividend to 360 and continue with: 3605 / 539

Advancing to step 8:
The number 539 fits into 3605 6 times, leaving a remainder of 371.
Use 6 as the next digit of our solution. 
Result so far: 152056.0
The remainder is 371 after subtracting 3234 from 3605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

On to step 9:
539 goes into 3710 6 times with a remainder of 476.
Write down 6 as next digit of the result. 
Result so far: 152056.6
If we subtract 3234 from 3710, we get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

On to step 10:
The number 539 fits into 4760 8 times, leaving a remainder of 448.
Record the quotient 8 as the next digit in the result. 
Result so far: 152056.68
Subtract 4312 from 4760 to get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Let's proceed to step 11:
4480 divided by 539 is 8 with a remainder of 168.
Record the quotient 8 as the next digit in the result. 
Result so far: 152056.688
If we subtract 4312 from 4480, we get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

The quotient of the division is 152056.688, and the remainder is 0.0168.