Alright, let's work through 7260 times 735 step by step
7260 × 735 = 735 × (7260)
+ 735 × 0 that equals 0
+ 735 × 60 what gives us 44100
+ 735 × 200 yielding 147000
+ 735 × 7000 that is equal 5145000

= 5336100
