Foreign students must pay so much more tuition than those who are from here.
The tuition fee for international students is many times more than it is for domestic students.
ご質問ありがとうございます。
① "Foreign students must pay so much more tuition"＝「留学生は何倍もの学費を払わなければいけない」
"than those who are from here."＝「現地の学生よりも。」
② "The tuition fee for international students is many times more than it is for domestic students."＝「留学生の学費は国内の学生の何倍もである。」
ご参考に。
アメリカ合衆国 
