We can arrange the calculation in such a way that it becomes easy and quick to find the answer.
2×1768×50
We can find the product of 2 and 50 first as we know that will give 100. Multiplying any number by hundred will result in the same number with 2 additional zeros at the units and tens place.
= (2×50)×1768
= 100×1768
= 176800