What is meant by "many times over"?

Imām Ibn al-Jawzī (d. 597/1201) summarized the scholars' opinions in his book "Zād al-Masīr" as follows:

1. It means that the number is uncountable. [Ibn ʿAbbās, al-Suddī] Abū ʿUthmān al-Nahdī reported from Abū Hurayrah: "Allah records for a believer two million good deeds for a single good deed." He then recited this verse and said: "When coming from Allah, what is abundant surpasses two million, and then another two million points of reward."

1. It refers to a specific amount. A single dirham is multiplied by seven hundred, as mentioned in the ayah that follows (2:261). [Ibn Zayd]