99329872 ÷ 581 
We want to figure out the number of times 99329872 can be divided by 581.

Moving on to step 1:
When dividing 9 by 581, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 581

Going ahead to step 2:
When dividing 99 by 581, we get 0 with a remainder of 99.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Append the next digit (3) from the dividend to 99 and continue with: 993 / 581

Going ahead to step 3:
If we divide 993 by 581, we get 1 and a remainder of 412.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 412 after subtracting 581 from 993.
Bring next digit (2) of the dividend behind the 412 and repeat the process: 4122 / 581

On to step 4:
4122 divided by 581 is 7 with a remainder of 55.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
If we subtract 4067 from 4122, we get 55.
Grab the next digit (9) from the dividend, add it to 55, then carry on: 559 / 581

Let's proceed to step 5:
559 divided by 581 is 0 with a remainder of 559.
Use 0 as the next digit of our solution. 
Result so far: 170.0
The remainder is 559 after subtracting 0 from 559.
Append the next digit (8) from the dividend to 559 and continue with: 5598 / 581

Step 6:
The number 581 fits into 5598 9 times, leaving a remainder of 369.
Put 9 as the next digit of the answer. 
Result so far: 1709.0
If we subtract 5229 from 5598, we get 369.
Grab the next digit (7) from the dividend, add it to 369, then carry on: 3697 / 581

Going ahead to step 7:
If we divide 3697 by 581, we get 6 and a remainder of 211.
Put 6 as the next digit of the answer. 
Result so far: 17096.0
If we subtract 3486 from 3697, we get 211.
Include the next digit (2) from the dividend after 211, then repeat: 2112 / 581

Moving on to step 8:
If we divide 2112 by 581, we get 3 and a remainder of 369.
Use 3 as the next digit of our solution. 
Result so far: 170963.0
Deduct 1743 from 2112 and we're left with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

On to step 9:
The number 581 fits into 3690 6 times, leaving a remainder of 204.
The next digit of our result is 6. 
Result so far: 170963.6
Deduct 3486 from 3690 and we're left with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 10:
581 can be fit into 2040 3 times, resulting in a remainder of 297.
Use 3 as the next digit of our solution. 
Result so far: 170963.63
Deduct 1743 from 2040 and we're left with 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Step 11:
The number 581 fits into 2970 5 times, leaving a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 170963.635
If we take 2905 away from 2970, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 12:
The number 581 fits into 650 1 times, leaving a remainder of 69.
Use 1 as the next digit of our solution. 
Result so far: 170963.6351
Subtract 581 from 650 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 13:
581 goes into 690 1 times with a remainder of 109.
Record the quotient 1 as the next digit in the result. 
Result so far: 170963.63511
If we subtract 581 from 690, we get 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

The final result is 170963.63511 with a remainder of 0.000109.