Not to worry, we've got 710161778 and 266072777. Let's get to adding them!

Step 1: We'll start by adding the digits 8 & 7 in column 1 and get 15.
We'll write down the last digit 5 and carry the 1 to the next column.

Step 2: We'll start by adding the digits 7 & 7 in column 2 and get 15.
We'll write down the last digit 5 and carry the 1 to the next column.

Step 3: We'll start by adding the digits 7 & 7 in column 3 and get 15.
We'll write down the last digit 5 and carry the 1 to the next column.

Step 4: We'll start by adding the digits 1 & 2 in column 4 and get 4.

Step 5: We'll start by adding the digits 6 & 7 in column 5 and get 13.
We'll write down the last digit 3 and carry the 1 to the next column.

Step 6: We'll start by adding the digits 1 & 0 in column 6 and get 2.

Step 7: We'll start by adding the digits 0 & 6 in column 7 and get 6.

Step 8: We'll start by adding the digits 1 & 6 in column 8 and get 7.

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

So, 710161778 + 266072777 = 976234555.

