We have numbers 2548845182 and 6723837347. Let's start adding them together.

Step 1: We'll start by adding the digits 2 & 7 in column 1 and get 9.

Step 2: We'll start by adding the digits 8 & 4 in column 2 and get 12.
We'll write down the last digit 2 and carry the 1 to the next column.

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

Step 4: We'll start by adding the digits 5 & 7 in column 4 and get 12.
We'll write down the last digit 2 and carry the 1 to the next column.

Step 5: We'll start by adding the digits 4 & 3 in column 5 and get 8.

Step 6: We'll start by adding the digits 8 & 8 in column 6 and get 16.
We'll write down the last digit 6 and carry the 1 to the next column.

Step 7: We'll start by adding the digits 8 & 3 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 4 & 2 in column 8 and get 7.

Step 9: We'll start by adding the digits 5 & 7 in column 9 and get 12.
We'll write down the last digit 2 and carry the 1 to the next column.

Step 10: We'll start by adding the digits 2 & 6 in column 10 and get 9.

So, 2548845182 + 6723837347 = 9272682529.

