18752940 ÷ 45 
We want to figure out the number of times 18752940 can be divided by 45.

Moving on to step 1:
45 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 45

Moving on to step 2:
45 can be fit into 18 0 times, resulting in a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Fetch the next digit (7) from the dividend, attach it to 18 and continue: 187 / 45

Advancing to step 3:
The number 45 fits into 187 4 times, leaving a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 180 from 187, we get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 45

Going ahead to step 4:
When dividing 75 by 45, we get 1 with a remainder of 30.
Record the quotient 1 as the next digit in the result. 
Result so far: 41.0
Deduct 45 from 75 and we're left with 30.
Grab the next digit (2) from the dividend, add it to 30, then carry on: 302 / 45

Advancing to step 5:
45 can be fit into 302 6 times, resulting in a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 416.0
The remainder is 32 after subtracting 270 from 302.
Include the next digit (9) from the dividend after 32, then repeat: 329 / 45

Advancing to step 6:
45 can be fit into 329 7 times, resulting in a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 4167.0
If we take 315 away from 329, we end up with 14.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 45

Step 7:
The number 45 fits into 144 3 times, leaving a remainder of 9.
Put 3 as the next digit of the answer. 
Result so far: 41673.0
The remainder is 9 after subtracting 135 from 144.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 45

Advancing to step 8:
45 can be fit into 90 2 times, resulting in a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 416732.0
Subtracting 90 from 90 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.

Advancing to step 9:
The number 45 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 416732.0
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.

Let's proceed to step 10:
When dividing 0 by 45, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 416732.0
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.

The final outcome is 416732.0, with a leftover of 0.0.