A million times a million is a trillion, so 200 trillion. or 200 x 10^12 = 2 x 10^14. You could also do it as 2 x 10^2 x 10^6 x 10^6, add the exponents of ten = 14.
11
one million or 1 times 10 ^6
10 million or 10,000,000
200
200
10 million dead $200 billion USD in 1945
200 x 10 = 2000
20 x 10 = 200
20
200
200