We are presented with 10901282 and 30891478. Let's work out the sum.

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

Step 2: We'll start by adding the digits 8 & 7 in column 2 and get 16.
We'll write down the last digit 6 and carry the 1 to the next column.

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

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

Step 5: We'll start by adding the digits 0 & 9 in column 5 and get 9.

Step 6: We'll start by adding the digits 9 & 8 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 0 & 0 in column 7 and get 1.

Step 8: We'll start by adding the digits 1 & 3 in column 8 and get 4.

So, 10901282 + 30891478 = 41792760.

