We divide 81001242 by 45
We want to figure out the number of times 81001242 can be divided by 45.

Let's proceed to step 1:
The number 45 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 45

Let's proceed to step 2:
45 goes into 81 1 times with a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 45 from 81 leaves us with 36.
Append the next digit (0) from the dividend to 36 and continue with: 360 / 45

On to step 3:
45 can be fit into 360 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 360 from 360 and we're left with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 45

Going ahead to step 4:
0 divided by 45 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 180.0
The remainder is 0 after subtracting 0 from 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 45

On to step 5:
When dividing 1 by 45, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 1800.0
If we take 0 away from 1, we end up with 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 45

Going ahead to step 6:
When dividing 12 by 45, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 18000.0
Deduct 0 from 12 and we're left with 12.
Append the next digit (4) from the dividend to 12 and continue with: 124 / 45

Step 7:
124 divided by 45 is 2 with a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 180002.0
If we take 90 away from 124, we end up with 34.
Append the next digit (2) from the dividend to 34 and continue with: 342 / 45

Going ahead to step 8:
342 divided by 45 is 7 with a remainder of 27.
Use 7 as the next digit of our solution. 
Result so far: 1800027.0
The remainder is 27 after subtracting 315 from 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 9:
45 can be fit into 270 6 times, resulting in a remainder of 0.
Write down 6 as next digit of the result. 
Result so far: 1800027.6
Deduct 270 from 270 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
The number 45 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 1800027.6
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
45 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1800027.6
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 1800027.6 with a remaining 0.0.