Alright, let's work through 66134868 times 25435347 step by step
66134868 × 25435347 = 25435347 × (66134868)
+ 25435347 × 8 what gives us 203482776
+ 25435347 × 60 giving us 1526120820
+ 25435347 × 800 giving us 20348277600
+ 25435347 × 4000 giving us 101741388000
+ 25435347 × 30000 producing 763060410000
+ 25435347 × 100000 that is equal 2543534700000
+ 25435347 × 6000000 resulting in 152612082000000
+ 25435347 × 60000000 that equals 1526120820000000

= 1682163316379196
