We're dividing 191266 by 45 
We want to figure out the number of times 191266 can be divided by 45.

Moving on to step 1:
The number 45 fits into 1 0 times, leaving a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (9) from the dividend, attach it to 1 and continue: 19 / 45

On to step 2:
When dividing 19 by 45, we get 0 with a remainder of 19.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Append the next digit (1) from the dividend to 19 and continue with: 191 / 45

Step 3:
The number 45 fits into 191 4 times, leaving a remainder of 11.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 180 from 191 and we're left with 11.
Include the next digit (2) from the dividend after 11, then repeat: 112 / 45

Step 4:
45 goes into 112 2 times with a remainder of 22.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Subtract 90 from 112 to get 22.
Fetch the next digit (6) from the dividend, attach it to 22 and continue: 226 / 45

Advancing to step 5:
226 divided by 45 is 5 with a remainder of 1.
Record the quotient 5 as the next digit in the result. 
Result so far: 425.0
Subtract 225 from 226 to get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 45

Step 6:
If we divide 16 by 45, we get 0 and a remainder of 16.
Put 0 as the next digit of the answer. 
Result so far: 4250.0
If we subtract 0 from 16, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 7:
45 can be fit into 160 3 times, resulting in a remainder of 25.
The next digit of our result is 3. 
Result so far: 4250.3
The remainder is 25 after subtracting 135 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 8:
When dividing 250 by 45, we get 5 with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 4250.35
Subtract 225 from 250 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 9:
When dividing 250 by 45, we get 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 4250.355
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

After the division, we end up with 4250.355 and a remainder of 0.0025.