Alright, let's work through 80628441 times 54457334 step by step
80628441 × 54457334 = 54457334 × (80628441)
+ 54457334 × 1 yielding 54457334
+ 54457334 × 40 what gives us 2178293360
+ 54457334 × 400 that results in 21782933600
+ 54457334 × 8000 that is equal 435658672000
+ 54457334 × 20000 resulting in 1089146680000
+ 54457334 × 600000 giving us 32674400400000
+ 54457334 × 0000000 that results in 0
+ 54457334 × 80000000 that equals 4356586720000000

= 4390809941436294
