100000000000000*200000

To multiply these two numbers, simply multiply 1*2 and then add 17 zeros at the end (since 1 has 14 zeros and 2 has 5 zeros, for a total of 14+5 zeros), and you get:

\(100,000,000,000,000 * 200,000 = 20,000,000,000,000,000,000 \)