To convert grams to hundredweight divide by 50802.35. I've generated some hopefully helpful examples randomly below, as with most random sentences please excuse the repetitive and occasionally comic outcomes.

To convert 7.7 grams into hundredweight divide by 50802.35 giving 0.00015157 hundredweight.

You have 5.9 grams of platinum but you need to know how many hundredweight that is. To get the answer divide by 50802.35 which gives you 0.00011614 hundredweight.

In 3.3 grams of diamonds there are 0.00006496 hundredweight, to achieve this take 3.3 and just divide by 50802.35.

You've got 3 grams of gold but someone only wants to buy that in units of hundredweight, to change the units divide by 50802.35. Now you have 0.00005905 hundredweight.