We're dividing 81191521 by 933 
We want to figure out the number of times 81191521 can be divided by 933.

Step 1:
8 divided by 933 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 933

Moving on to step 2:
The number 933 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Include the next digit (1) from the dividend after 81, then repeat: 811 / 933

Advancing to step 3:
933 can be fit into 811 0 times, resulting in a remainder of 811.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 811 leaves us with 811.
Take the next digit (9) from the dividend and append it to 811, then repeat: 8119 / 933

Moving on to step 4:
The number 933 fits into 8119 8 times, leaving a remainder of 655.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 7464 from 8119, we get 655.
Fetch the next digit (1) from the dividend, attach it to 655 and continue: 6551 / 933

Moving on to step 5:
933 can be fit into 6551 7 times, resulting in a remainder of 20.
Write down 7 as next digit of the result. 
Result so far: 87.0
Deduct 6531 from 6551 and we're left with 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 933

Let's proceed to step 6:
The number 933 fits into 205 0 times, leaving a remainder of 205.
Use 0 as the next digit of our solution. 
Result so far: 870.0
The remainder is 205 after subtracting 0 from 205.
Grab the next digit (2) from the dividend, add it to 205, then carry on: 2052 / 933

Advancing to step 7:
When dividing 2052 by 933, we get 2 with a remainder of 186.
The next digit of our result is 2. 
Result so far: 8702.0
The remainder is 186 after subtracting 1866 from 2052.
Append the next digit (1) from the dividend to 186 and continue with: 1861 / 933

Advancing to step 8:
933 goes into 1861 1 times with a remainder of 928.
The number 1 becomes the next digit in our result. 
Result so far: 87021.0
The remainder is 928 after subtracting 933 from 1861.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9280, and continue the process.

Going ahead to step 9:
9280 divided by 933 is 9 with a remainder of 883.
Write down 9 as next digit of the result. 
Result so far: 87021.9
If we subtract 8397 from 9280, we get 883.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8830, and continue the process.

Let's proceed to step 10:
8830 divided by 933 is 9 with a remainder of 433.
The number 9 becomes the next digit in our result. 
Result so far: 87021.99
Deduct 8397 from 8830 and we're left with 433.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4330, and continue the process.

Our division results in 87021.99 with a remaining 0.433.