Alright, let's work through 40788274 times 76517748 step by step
40788274 × 76517748 = 76517748 × (40788274)
+ 76517748 × 4 resulting in 306070992
+ 76517748 × 70 giving us 5356242360
+ 76517748 × 200 that is equal 15303549600
+ 76517748 × 8000 that results in 612141984000
+ 76517748 × 80000 producing 6121419840000
+ 76517748 × 700000 resulting in 53562423600000
+ 76517748 × 0000000 that equals 0
+ 76517748 × 40000000 producing 3060709920000000

= 3121026871286952
