No problem, we've got 83286551 and 66484780 to multiply
83286551 × 66484780 = 66484780 × (83286551)
+ 66484780 × 1 yielding 66484780
+ 66484780 × 50 that is equal 3324239000
+ 66484780 × 500 that equals 33242390000
+ 66484780 × 6000 that results in 398908680000
+ 66484780 × 80000 what gives us 5318782400000
+ 66484780 × 200000 giving us 13296956000000
+ 66484780 × 3000000 giving us 199454340000000
+ 66484780 × 80000000 yielding 5318782400000000

= 5537288020193780
