The problem provides us with the weight of Charmaine's racehorse in kilograms (kg), and we need to convert this weight into grams (g).
Here are the steps to find the weight of the racehorse in grams:
Step 1: We start with the weight of the horse provided in kilograms. We know that Charmaine's racehorse weighs 500 kilograms.
Step 2: We need to recall the conversion rate between kilograms and grams. We know that 1 kilogram is equal to 1000 grams.
Step 3: We now multiply the weight of the racehorse in kilograms by the conversion rate to get the weight in grams. We would have the following calculation: 500 kilograms * 1000 = 500,000 grams.
Therefore, Charmaine's racehorse weighs 500,000 grams.