Alright, let's work through 55213740 times 70140578 step by step
55213740 × 70140578 = 70140578 × (55213740)
+ 70140578 × 0 which equals 0
+ 70140578 × 40 producing 2805623120
+ 70140578 × 700 giving us 49098404600
+ 70140578 × 3000 giving us 210421734000
+ 70140578 × 10000 what gives us 701405780000
+ 70140578 × 200000 giving us 14028115600000
+ 70140578 × 5000000 that is equal 350702890000000
+ 70140578 × 50000000 what gives us 3507028900000000

= 3872723637141720
