Alright, let's work through 64462980 times 66499700 step by step
64462980 × 66499700 = 66499700 × (64462980)
+ 66499700 × 0 which equals 0
+ 66499700 × 80 giving us 5319976000
+ 66499700 × 900 that is equal 59849730000
+ 66499700 × 2000 what gives us 132999400000
+ 66499700 × 60000 that is equal 3989982000000
+ 66499700 × 400000 that equals 26599880000000
+ 66499700 × 4000000 which equals 265998800000000
+ 66499700 × 60000000 what gives us 3989982000000000

= 4286768831106000
