Not to worry, we've got 9596992387 and 1185777157. Let's get to adding them!

Step 1: We'll start by adding the digits 7 & 7 in column 1 and get 14.
We'll write down the last digit 4 and carry the 1 to the next column.

Step 2: We'll start by adding the digits 8 & 5 in column 2 and get 14.
We'll write down the last digit 4 and carry the 1 to the next column.

Step 3: We'll start by adding the digits 3 & 1 in column 3 and get 5.

Step 4: We'll start by adding the digits 2 & 7 in column 4 and get 9.

Step 5: We'll start by adding the digits 9 & 7 in column 5 and get 16.
We'll write down the last digit 6 and carry the 1 to the next column.

Step 6: We'll start by adding the digits 9 & 7 in column 6 and get 17.
We'll write down the last digit 7 and carry the 1 to the next column.

Step 7: We'll start by adding the digits 6 & 5 in column 7 and get 12.
We'll write down the last digit 2 and carry the 1 to the next column.

Step 8: We'll start by adding the digits 9 & 8 in column 8 and get 18.
We'll write down the last digit 8 and carry the 1 to the next column.

Step 9: We'll start by adding the digits 5 & 1 in column 9 and get 7.

Step 10: We'll start by adding the digits 9 & 1 in column 10 and get 10.
We'll write down the last digit 0 and carry the 1 to the next column.

So, 9596992387 + 1185777157 = 10782769544.

