Alright, let's work through 67408175 times 64023174 step by step
67408175 × 64023174 = 64023174 × (67408175)
+ 64023174 × 5 that results in 320115870
+ 64023174 × 70 giving us 4481622180
+ 64023174 × 100 giving us 6402317400
+ 64023174 × 8000 which equals 512185392000
+ 64023174 × 00000 that is equal 0
+ 64023174 × 400000 yielding 25609269600000
+ 64023174 × 7000000 giving us 448162218000000
+ 64023174 × 60000000 which equals 3841390440000000

= 4315685317047450
