Alright, let's work through 68812870 times 65973671 step by step
68812870 × 65973671 = 65973671 × (68812870)
+ 65973671 × 0 giving us 0
+ 65973671 × 70 giving us 4618156970
+ 65973671 × 800 yielding 52778936800
+ 65973671 × 2000 yielding 131947342000
+ 65973671 × 10000 that equals 659736710000
+ 65973671 × 800000 that equals 52778936800000
+ 65973671 × 8000000 that results in 527789368000000
+ 65973671 × 60000000 that equals 3958420260000000

= 4539837645945770
