86141351 ÷ 99 
We want to figure out the number of times 86141351 can be divided by 99.

Advancing to step 1:
If we divide 8 by 99, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 99

On to step 2:
If we divide 86 by 99, we get 0 and a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Include the next digit (1) from the dividend after 86, then repeat: 861 / 99

Step 3:
If we divide 861 by 99, we get 8 and a remainder of 69.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtracting 792 from 861 leaves us with 69.
Include the next digit (4) from the dividend after 69, then repeat: 694 / 99

Let's proceed to step 4:
When dividing 694 by 99, we get 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 87.0
If we subtract 693 from 694, we get 1.
Include the next digit (1) from the dividend after 1, then repeat: 11 / 99

Advancing to step 5:
99 goes into 11 0 times with a remainder of 11.
Use 0 as the next digit of our solution. 
Result so far: 870.0
If we take 0 away from 11, we end up with 11.
Take the next digit (3) from the dividend and append it to 11, then repeat: 113 / 99

Moving on to step 6:
99 goes into 113 1 times with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 8701.0
Deduct 99 from 113 and we're left with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 99

Moving on to step 7:
145 divided by 99 is 1 with a remainder of 46.
The number 1 becomes the next digit in our result. 
Result so far: 87011.0
If we take 99 away from 145, we end up with 46.
Include the next digit (1) from the dividend after 46, then repeat: 461 / 99

On to step 8:
If we divide 461 by 99, we get 4 and a remainder of 65.
The next digit of our result is 4. 
Result so far: 870114.0
Subtracting 396 from 461 leaves us 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.

Moving on to step 9:
99 can be fit into 650 6 times, resulting in a remainder of 56.
Use 6 as the next digit of our solution. 
Result so far: 870114.6
Subtract 594 from 650 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 10:
The number 99 fits into 560 5 times, leaving a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 870114.65
Deduct 495 from 560 and we're left 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.

Step 11:
If we divide 650 by 99, we get 6 and a remainder of 56.
The next digit of our result is 6. 
Result so far: 870114.656
If we subtract 594 from 650, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 12:
If we divide 560 by 99, we get 5 and a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 870114.6565
If we take 495 away from 560, 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.

On to step 13:
99 goes into 650 6 times with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 870114.65656
Deduct 594 from 650 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 14:
99 can be fit into 560 5 times, resulting in a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 870114.656565
Deduct 495 from 560 and we're left 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.

Let's proceed to step 15:
If we divide 650 by 99, we get 6 and a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 870114.6565656
Deduct 594 from 650 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 16:
99 goes into 560 5 times with a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 870114.65656565
If we take 495 away from 560, 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.

Our division results in 870114.65656565 with a remaining 6.5e-08.