Alright, let's work through 30148120 times 42158048 step by step
30148120 × 42158048 = 42158048 × (30148120)
+ 42158048 × 0 that results in 0
+ 42158048 × 20 giving us 843160960
+ 42158048 × 100 giving us 4215804800
+ 42158048 × 8000 that is equal 337264384000
+ 42158048 × 40000 that equals 1686321920000
+ 42158048 × 100000 resulting in 4215804800000
+ 42158048 × 0000000 that is equal 0
+ 42158048 × 30000000 producing 1264741440000000

= 1270985890069760
