No problem, we've got 84297426 and 89139081 to multiply
84297426 × 89139081 = 89139081 × (84297426)
+ 89139081 × 6 resulting in 534834486
+ 89139081 × 20 what gives us 1782781620
+ 89139081 × 400 yielding 35655632400
+ 89139081 × 7000 that is equal 623973567000
+ 89139081 × 90000 that equals 8022517290000
+ 89139081 × 200000 that is equal 17827816200000
+ 89139081 × 4000000 that is equal 356556324000000
+ 89139081 × 80000000 yielding 7131126480000000

= 7514195084305506
