91520 ÷ 66 
We want to figure out the number of times 91520 can be divided by 66.

Going ahead to step 1:
When dividing 9 by 66, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 66

On to step 2:
66 can be fit into 91 1 times, resulting in a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 25 after subtracting 66 from 91.
Include the next digit (5) from the dividend after 25, then repeat: 255 / 66

On to step 3:
255 divided by 66 is 3 with a remainder of 57.
The next digit of our result is 3. 
Result so far: 13.0
If we subtract 198 from 255, we get 57.
Include the next digit (2) from the dividend after 57, then repeat: 572 / 66

Let's proceed to step 4:
572 divided by 66 is 8 with a remainder of 44.
Write down 8 as next digit of the result. 
Result so far: 138.0
The remainder is 44 after subtracting 528 from 572.
Grab the next digit (0) from the dividend, add it to 44, then carry on: 440 / 66

Advancing to step 5:
66 goes into 440 6 times with a remainder of 44.
The next digit of our result is 6. 
Result so far: 1386.0
If we subtract 396 from 440, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 6:
66 goes into 440 6 times with a remainder of 44.
The next digit of our result is 6. 
Result so far: 1386.6
If we take 396 away from 440, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 7:
440 divided by 66 is 6 with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 1386.66
If we subtract 396 from 440, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 1386.66 with a remainder of 0.044.