Okay, we are tasked with adding 2400510771 and 6568163222. Let's begin!

Step 1: We'll start by adding the digits 1 & 2 in column 1 and get 3.

Step 2: We'll start by adding the digits 7 & 2 in column 2 and get 9.

Step 3: We'll start by adding the digits 7 & 2 in column 3 and get 9.

Step 4: We'll start by adding the digits 0 & 3 in column 4 and get 3.

Step 5: We'll start by adding the digits 1 & 6 in column 5 and get 7.

Step 6: We'll start by adding the digits 5 & 1 in column 6 and get 6.

Step 7: We'll start by adding the digits 0 & 8 in column 7 and get 8.

Step 8: We'll start by adding the digits 0 & 6 in column 8 and get 6.

Step 9: We'll start by adding the digits 4 & 5 in column 9 and get 9.

Step 10: We'll start by adding the digits 2 & 6 in column 10 and get 8.

So, 2400510771 + 6568163222 = 8968673993.

