Alright, let's work through 69842389 times 40388281 step by step
69842389 × 40388281 = 40388281 × (69842389)
+ 40388281 × 9 that results in 363494529
+ 40388281 × 80 yielding 3231062480
+ 40388281 × 300 that results in 12116484300
+ 40388281 × 2000 yielding 80776562000
+ 40388281 × 40000 which equals 1615531240000
+ 40388281 × 800000 yielding 32310624800000
+ 40388281 × 9000000 giving us 363494529000000
+ 40388281 × 60000000 giving us 2423296860000000

= 2820814032643309
