Part 3/5:
Subsequent Rows: As we shift left, for each occupied place in our first number, we carry over a zero, akin to adding zeros to a decimal to indicate its place value in the result. Each subsequent multiplication outputs a row filled with '1's, gradually increasing the number of leading zeros.
Summation of Rows: After calculating all rows, we can start summing them together. Importantly, throughout this process, we notice a rising columnar sum:
First Column: 1 (the result of 1 + 0)
Second Column: 2 (the result of 1 from the first row + 1 from the second)
Continuing on till the Ninth Column: This adds up to produce numbers from 1 to 9 as we traverse the initial columns.