91638939 ÷ 539 
We want to divide 91638939 by 539.

Going ahead to step 1:
The number 539 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Fetch the next digit (1) from the dividend, attach it to 9 and continue: 91 / 539

Let's proceed to step 2:
539 goes into 91 0 times with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Append the next digit (6) from the dividend to 91 and continue with: 916 / 539

Moving on to step 3:
539 goes into 916 1 times with a remainder of 377.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 539 from 916 leaves us with 377.
Include the next digit (3) from the dividend after 377, then repeat: 3773 / 539

Advancing to step 4:
539 goes into 3773 7 times with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 0 after subtracting 3773 from 3773.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 539

Going ahead to step 5:
When dividing 8 by 539, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 170.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 539

On to step 6:
539 can be fit into 89 0 times, resulting in a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 1700.0
If we take 0 away from 89, we end up with 89.
Append the next digit (3) from the dividend to 89 and continue with: 893 / 539

Advancing to step 7:
The number 539 fits into 893 1 times, leaving a remainder of 354.
Record the quotient 1 as the next digit in the result. 
Result so far: 17001.0
The remainder is 354 after subtracting 539 from 893.
Include the next digit (9) from the dividend after 354, then repeat: 3549 / 539

Moving on to step 8:
When dividing 3549 by 539, we get 6 with a remainder of 315.
The number 6 becomes the next digit in our result. 
Result so far: 170016.0
If we take 3234 away from 3549, we end up with 315.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

On to step 9:
When dividing 3150 by 539, we get 5 with a remainder of 455.
Put 5 as the next digit of the answer. 
Result so far: 170016.5
If we take 2695 away from 3150, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Step 10:
When dividing 4550 by 539, we get 8 with a remainder of 238.
Record the quotient 8 as the next digit in the result. 
Result so far: 170016.58
Subtracting 4312 from 4550 leaves us with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 11:
2380 divided by 539 is 4 with a remainder of 224.
Put 4 as the next digit of the answer. 
Result so far: 170016.584
Subtracting 2156 from 2380 leaves us with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Step 12:
When dividing 2240 by 539, we get 4 with a remainder of 84.
Put 4 as the next digit of the answer. 
Result so far: 170016.5844
Deduct 2156 from 2240 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Our division results in 170016.5844 with a remaining 0.00084.