No problem, we've got 83149788 and 52478116 to multiply
83149788 × 52478116 = 52478116 × (83149788)
+ 52478116 × 8 yielding 419824928
+ 52478116 × 80 that equals 4198249280
+ 52478116 × 700 which equals 36734681200
+ 52478116 × 9000 what gives us 472303044000
+ 52478116 × 40000 resulting in 2099124640000
+ 52478116 × 100000 yielding 5247811600000
+ 52478116 × 3000000 yielding 157434348000000
+ 52478116 × 80000000 what gives us 4198249280000000

= 4363544220039408
