Final answer:
Multiplying the rate of items sold per second by the total seconds given results in the online shopping site selling 756,756,076,200 items in 1,800,180 seconds.
Step-by-step explanation:
At its peak, an online shopping site was selling approximately 420,420 items per second. To calculate how many items it would sell in 1,800,180 seconds, we simply multiply the number of items sold in one second by the total number of seconds.
The calculation is as follows:
420,420 items/second × 1,800,180 seconds = 756,756,076,200 items
Therefore, the online shopping site would sell 756,756,076,200 items in 1,800,180 seconds at its peak rate.