So, we're going to do (2.4)*(3.7) in two different ways:
a) 24*37= 888
Now let's move the decimal point:
2.4*3.7 = 8.88
b) Calculating the areas:
Area 1: 3*2=6
Area 2: 0.4*3 = 1.2
Area 3: 0.7*2 = 1.4
Area 4: 0.7*0.4 = 0.28
Adding them all: 6 + 1.2 + 1.4 + 0.28 = 8.88