We can solve this together! We're beginning with 927060880 and removing 247923742 from it.

Step 1: We'll start by subtracting the digit 2 and the borrow 0 from 0 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 4 and the borrow 1 from 8 in column 2 and get 3.
3 is the next digit of our result.

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

Step 4: We'll start by subtracting the digit 3 and the borrow 0 from 0 in column 4 and get -3.
We add -3 to 10 and get 7 as the next digit of the result.

Step 5: We'll start by subtracting the digit 2 and the borrow 1 from 6 in column 5 and get 3.
3 is the next digit of our result.

Step 6: We'll start by subtracting the digit 9 and the borrow 0 from 0 in column 6 and get -9.
We add -9 to 10 and get 1 as the next digit of the result.

Step 7: We'll start by subtracting the digit 7 and the borrow 1 from 7 in column 7 and get -1.
We add -1 to 10 and get 9 as the next digit of the result.

Step 8: We'll start by subtracting the digit 4 and the borrow 1 from 2 in column 8 and get -3.
We add -3 to 10 and get 7 as the next digit of the result.

Step 9: We'll start by subtracting the digit 2 and the borrow 1 from 9 in column 9 and get 6.
6 is the next digit of our result.

So, 927060880 - 247923742 = 679137138.