Got it! So, we have 822258390 and 409741400, and we'll subtract the latter from the former.

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

Step 2: We'll start by subtracting the digit 0 and the borrow 0 from 9 in column 2 and get 9.
9 is the next digit of our result.

Step 3: We'll start by subtracting the digit 4 and the borrow 0 from 3 in column 3 and get -1.
We add -1 to 10 and get 9 as the next digit of the result.

Step 4: We'll start by subtracting the digit 1 and the borrow 1 from 8 in column 4 and get 6.
6 is the next digit of our result.

Step 5: We'll start by subtracting the digit 4 and the borrow 0 from 5 in column 5 and get 1.
1 is the next digit of our result.

Step 6: We'll start by subtracting the digit 7 and the borrow 0 from 2 in column 6 and get -5.
We add -5 to 10 and get 5 as the next digit of the result.

Step 7: We'll start by subtracting the digit 9 and the borrow 1 from 2 in column 7 and get -8.
We add -8 to 10 and get 2 as the next digit of the result.

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

Step 9: We'll start by subtracting the digit 4 and the borrow 0 from 8 in column 9 and get 4.
4 is the next digit of our result.

So, 822258390 - 409741400 = 412516990.