Alright, let's work through 42248087 times 79600654 step by step
42248087 × 79600654 = 79600654 × (42248087)
+ 79600654 × 7 yielding 557204578
+ 79600654 × 80 yielding 6368052320
+ 79600654 × 000 that results in 0
+ 79600654 × 8000 that equals 636805232000
+ 79600654 × 40000 that equals 3184026160000
+ 79600654 × 200000 yielding 15920130800000
+ 79600654 × 2000000 producing 159201308000000
+ 79600654 × 40000000 yielding 3184026160000000

= 3362975355448898
