Alright, let's work through 84423057 times 85648452 step by step
84423057 × 85648452 = 85648452 × (84423057)
+ 85648452 × 7 what gives us 599539164
+ 85648452 × 50 yielding 4282422600
+ 85648452 × 000 yielding 0
+ 85648452 × 3000 that results in 256945356000
+ 85648452 × 20000 giving us 1712969040000
+ 85648452 × 400000 giving us 34259380800000
+ 85648452 × 4000000 which equals 342593808000000
+ 85648452 × 80000000 what gives us 6851876160000000

= 7230704145157764
