You are given a math word problem and you are supposed to apply division mathematical operator on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Example: Context: Alex wants to split a collection of eggs into 4 groups. Alex has 8 eggs and 6 marbles. 

 Question: How many eggs will each group have?
Example solution: 2
Example explanation: Total eggs each group will get is 8/4 = 2

Problem: Context: An industrial machine made 9 shirts yesterday and 8 shirts today. It can make 2 shirts a minute. 

 Question: How many minutes did the machine work today?

Solution: 4