Here we go! We're going to add 2302980662 and 361129755 together.

Step 1: We'll start by adding the digits 2 & 5 in column 1 and get 7.

Step 2: We'll start by adding the digits 6 & 5 in column 2 and get 11.
We'll write down the last digit 1 and carry the 1 to the next column.

Step 3: We'll start by adding the digits 6 & 7 in column 3 and get 14.
We'll write down the last digit 4 and carry the 1 to the next column.

Step 4: We'll start by adding the digits 0 & 9 in column 4 and get 10.
We'll write down the last digit 0 and carry the 1 to the next column.

Step 5: We'll start by adding the digits 8 & 2 in column 5 and get 11.
We'll write down the last digit 1 and carry the 1 to the next column.

Step 6: We'll start by adding the digits 9 & 1 in column 6 and get 11.
We'll write down the last digit 1 and carry the 1 to the next column.

Step 7: We'll start by adding the digits 2 & 1 in column 7 and get 4.

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 3 & 3 in column 9 and get 6.

Step 10: We'll start by adding the digits 2 & 0 in column 10 and get 2.

So, 2302980662 + 361129755 = 2664110417.

