Alright, let's work through 55102587 times 66876915 step by step
55102587 × 66876915 = 66876915 × (55102587)
+ 66876915 × 7 giving us 468138405
+ 66876915 × 80 resulting in 5350153200
+ 66876915 × 500 resulting in 33438457500
+ 66876915 × 2000 giving us 133753830000
+ 66876915 × 00000 yielding 0
+ 66876915 × 100000 that is equal 6687691500000
+ 66876915 × 5000000 which equals 334384575000000
+ 66876915 × 50000000 that equals 3343845750000000

= 3685091027079105
