Let's calculate 90897607 x 70678645
90897607 × 70678645 = 70678645 × (90897607)
+ 70678645 × 7 yielding 494750515
+ 70678645 × 00 what gives us 0
+ 70678645 × 600 yielding 42407187000
+ 70678645 × 7000 resulting in 494750515000
+ 70678645 × 90000 giving us 6361078050000
+ 70678645 × 800000 what gives us 56542916000000
+ 70678645 × 0000000 yielding 0
+ 70678645 × 90000000 which equals 6361078050000000

= 6424519696502515
