We've got two numbers: 1455338714 and 4523660062. Let's find their sum.

Step 1: We'll start by adding the digits 4 & 2 in column 1 and get 6.

Step 2: We'll start by adding the digits 1 & 6 in column 2 and get 7.

Step 3: We'll start by adding the digits 7 & 0 in column 3 and get 7.

Step 4: We'll start by adding the digits 8 & 0 in column 4 and get 8.

Step 5: We'll start by adding the digits 3 & 6 in column 5 and get 9.

Step 6: We'll start by adding the digits 3 & 6 in column 6 and get 9.

Step 7: We'll start by adding the digits 5 & 3 in column 7 and get 8.

Step 8: We'll start by adding the digits 5 & 2 in column 8 and get 7.

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 1 & 4 in column 10 and get 5.

So, 1455338714 + 4523660062 = 5978998776.

