Alright, let's work through 70364508 times 76997421 step by step
70364508 × 76997421 = 76997421 × (70364508)
+ 76997421 × 8 what gives us 615979368
+ 76997421 × 00 that is equal 0
+ 76997421 × 500 which equals 38498710500
+ 76997421 × 4000 resulting in 307989684000
+ 76997421 × 60000 what gives us 4619845260000
+ 76997421 × 300000 that results in 23099226300000
+ 76997421 × 0000000 what gives us 0
+ 76997421 × 70000000 giving us 5389819470000000

= 5417885645933868
