Since I do not see a comma or decimal in your “8432g”, I will assume it is eight thousand, four hundred and thirty two grams. 8,432 grams equates to 8.432 kilograms. If you meant to put eight point four tenths, three hundredths, two thousandths grams, then the answer is 0.008432 kilograms.
To confirm:
8,432 g = 8.432 kg
8.432 g = 0.008432 kg.
