8537909 ÷ 99 
Our goal is to divide 8537909 by 99.

Let's proceed to step 1:
The number 99 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
Deduct 0 from 8 and we're left with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 99

On to step 2:
85 divided by 99 is 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 85, we get 85.
Bring next digit (3) of the dividend behind the 85 and repeat the process: 853 / 99

Moving on to step 3:
853 divided by 99 is 8 with a remainder of 61.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 792 from 853 and we're left with 61.
Grab the next digit (7) from the dividend, add it to 61, then carry on: 617 / 99

Going ahead to step 4:
99 can be fit into 617 6 times, resulting in a remainder of 23.
Use 6 as the next digit of our solution. 
Result so far: 86.0
Subtracting 594 from 617 leaves us with 23.
Grab the next digit (9) from the dividend, add it to 23, then carry on: 239 / 99

Advancing to step 5:
If we divide 239 by 99, we get 2 and a remainder of 41.
Write down 2 as next digit of the result. 
Result so far: 862.0
The remainder is 41 after subtracting 198 from 239.
Append the next digit (0) from the dividend to 41 and continue with: 410 / 99

Step 6:
410 divided by 99 is 4 with a remainder of 14.
The next digit of our result is 4. 
Result so far: 8624.0
Deduct 396 from 410 and we're left with 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 99

Step 7:
The number 99 fits into 149 1 times, leaving a remainder of 50.
Use 1 as the next digit of our solution. 
Result so far: 86241.0
Subtract 99 from 149 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 8:
99 goes into 500 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 86241.5
The remainder is 5 after subtracting 495 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
When dividing 50 by 99, we get 0 with a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 86241.5
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 10:
99 goes into 500 5 times with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 86241.505
If we subtract 495 from 500, 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.

Advancing to step 11:
If we divide 50 by 99, we get 0 and a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 86241.505
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
99 can be fit into 500 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 86241.50505
If we take 495 away from 500, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 13:
99 can be fit into 50 0 times, resulting in a remainder of 50.
The next digit of our result is 0. 
Result so far: 86241.50505
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 14:
When dividing 500 by 99, we get 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 86241.5050505
The remainder is 5 after subtracting 495 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 15:
If we divide 50 by 99, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 86241.5050505
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

After the division, we end up with 86241.5050505 and a remainder of 5e-08.