91880351 ÷ 45 
Let's see how many times 45 fits into 91880351.

Advancing to step 1:
When dividing 9 by 45, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 45

On to step 2:
91 divided by 45 is 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 90 from 91, we get 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 45

Step 3:
If we divide 18 by 45, we get 0 and a remainder of 18.
The next digit of our result is 0. 
Result so far: 20.0
If we subtract 0 from 18, we get 18.
Grab the next digit (8) from the dividend, add it to 18, then carry on: 188 / 45

Moving on to step 4:
45 goes into 188 4 times with a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 204.0
If we subtract 180 from 188, we get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 45

Going ahead to step 5:
When dividing 80 by 45, we get 1 with a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 2041.0
Subtracting 45 from 80 leaves us with 35.
Fetch the next digit (3) from the dividend, attach it to 35 and continue: 353 / 45

Advancing to step 6:
353 divided by 45 is 7 with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 20417.0
If we take 315 away from 353, we end up with 38.
Append the next digit (5) from the dividend to 38 and continue with: 385 / 45

Advancing to step 7:
The number 45 fits into 385 8 times, leaving a remainder of 25.
Put 8 as the next digit of the answer. 
Result so far: 204178.0
Subtracting 360 from 385 leaves us with 25.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 45

Step 8:
If we divide 251 by 45, we get 5 and a remainder of 26.
The next digit of our result is 5. 
Result so far: 2041785.0
If we subtract 225 from 251, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

On to step 9:
260 divided by 45 is 5 with a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 2041785.5
If we take 225 away from 260, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 10:
45 can be fit into 350 7 times, resulting in a remainder of 35.
Put 7 as the next digit of the answer. 
Result so far: 2041785.57
Subtracting 315 from 350 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 11:
45 can be fit into 350 7 times, resulting in a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 2041785.577
If we subtract 315 from 350, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 2041785.577 with a remaining 0.0035.