Alright, let's work through 4066794 times 77317720 step by step
4066794 × 77317720 = 77317720 × (4066794)
+ 77317720 × 4 resulting in 309270880
+ 77317720 × 90 yielding 6958594800
+ 77317720 × 700 that equals 54122404000
+ 77317720 × 6000 that equals 463906320000
+ 77317720 × 60000 yielding 4639063200000
+ 77317720 × 000000 that is equal 0
+ 77317720 × 4000000 that is equal 309270880000000

= 314435239789680
