No problem, we've got 79825749 and 8883530 to multiply
79825749 × 8883530 = 8883530 × (79825749)
+ 8883530 × 9 that results in 79951770
+ 8883530 × 40 that is equal 355341200
+ 8883530 × 700 giving us 6218471000
+ 8883530 × 5000 resulting in 44417650000
+ 8883530 × 20000 that equals 177670600000
+ 8883530 × 800000 yielding 7106824000000
+ 8883530 × 9000000 that equals 79951770000000
+ 8883530 × 70000000 resulting in 621847100000000

= 709134436013970
