Alright, let's work through 87492051 times 71807649 step by step
87492051 × 71807649 = 71807649 × (87492051)
+ 71807649 × 1 resulting in 71807649
+ 71807649 × 50 that results in 3590382450
+ 71807649 × 000 that equals 0
+ 71807649 × 2000 that results in 143615298000
+ 71807649 × 90000 which equals 6462688410000
+ 71807649 × 400000 giving us 28723059600000
+ 71807649 × 7000000 that results in 502653543000000
+ 71807649 × 80000000 what gives us 5744611920000000

= 6282598488498099
