1 ton is 1000 kg and 1 kg is 1000 g. 1g is 1000 mg.
Therefore we can transform ton into mg following these steps. Let's do it first to kg:
[tex]0.53\text{ ton }\times\text{ 1000 = 530 kg}[/tex][tex]\text{530 kg}\times1000\text{ = 530000 g}[/tex][tex]\text{530000 g }\times\text{ 1000 = 530000}000\text{ mg}[/tex]If you want to do it faster, you can multiplicate 0.53 by 10^9 to transform ton into mg!