Alright, let's work through 85420693 times 49402375 step by step
85420693 × 49402375 = 49402375 × (85420693)
+ 49402375 × 3 resulting in 148207125
+ 49402375 × 90 producing 4446213750
+ 49402375 × 600 giving us 29641425000
+ 49402375 × 0000 resulting in 0
+ 49402375 × 20000 resulting in 988047500000
+ 49402375 × 400000 that is equal 19760950000000
+ 49402375 × 5000000 resulting in 247011875000000
+ 49402375 × 80000000 what gives us 3952190000000000

= 4219985108345875
