Alright, let's work through 74290562 times 20720890 step by step
74290562 × 20720890 = 20720890 × (74290562)
+ 20720890 × 2 that results in 41441780
+ 20720890 × 60 that equals 1243253400
+ 20720890 × 500 giving us 10360445000
+ 20720890 × 0000 that is equal 0
+ 20720890 × 90000 that results in 1864880100000
+ 20720890 × 200000 giving us 4144178000000
+ 20720890 × 4000000 that is equal 82883560000000
+ 20720890 × 70000000 which equals 1450462300000000

= 1539366563240180
