We've got two numbers: 2147536584 and 6090692224. Let's find their sum.

Step 1: We'll start by adding the digits 4 & 4 in column 1 and get 8.

Step 2: We'll start by adding the digits 8 & 2 in column 2 and get 10.
We'll write down the last digit 0 and carry the 1 to the next column.

Step 3: We'll start by adding the digits 5 & 2 in column 3 and get 8.

Step 4: We'll start by adding the digits 6 & 2 in column 4 and get 8.

Step 5: We'll start by adding the digits 3 & 9 in column 5 and get 12.
We'll write down the last digit 2 and carry the 1 to the next column.

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

Step 7: We'll start by adding the digits 7 & 0 in column 7 and get 8.

Step 8: We'll start by adding the digits 4 & 9 in column 8 and get 13.
We'll write down the last digit 3 and carry the 1 to the next column.

Step 9: We'll start by adding the digits 1 & 0 in column 9 and get 2.

Step 10: We'll start by adding the digits 2 & 6 in column 10 and get 8.

So, 2147536584 + 6090692224 = 8238228808.

