Let's dive into this subtraction. We'll start with 487127835 and subtract 445749087 from it.

Step 1: We'll start by subtracting the digit 7 and the borrow 0 from 5 in column 1 and get -2.
We add -2 to 10 and get 8 as the first digit of the result.

Step 2: We'll start by subtracting the digit 8 and the borrow 1 from 3 in column 2 and get -6.
We add -6 to 10 and get 4 as the next digit of the result.

Step 3: We'll start by subtracting the digit 0 and the borrow 1 from 8 in column 3 and get 7.
7 is the next digit of our result.

Step 4: We'll start by subtracting the digit 9 and the borrow 0 from 7 in column 4 and get -2.
We add -2 to 10 and get 8 as the next digit of the result.

Step 5: We'll start by subtracting the digit 4 and the borrow 1 from 2 in column 5 and get -3.
We add -3 to 10 and get 7 as the next digit of the result.

Step 6: We'll start by subtracting the digit 7 and the borrow 1 from 1 in column 6 and get -7.
We add -7 to 10 and get 3 as the next digit of the result.

Step 7: We'll start by subtracting the digit 5 and the borrow 1 from 7 in column 7 and get 1.
1 is the next digit of our result.

Step 8: We'll start by subtracting the digit 4 and the borrow 0 from 8 in column 8 and get 4.
4 is the next digit of our result.

Step 9: We'll start by subtracting the digit 4 and the borrow 0 from 4 in column 9 and get 0.
0 is the next digit of our result.

So, 487127835 - 445749087 = 41378748.