No problem, we've got 90400346 and 77990984 to multiply
90400346 × 77990984 = 77990984 × (90400346)
+ 77990984 × 6 yielding 467945904
+ 77990984 × 40 that is equal 3119639360
+ 77990984 × 300 giving us 23397295200
+ 77990984 × 0000 what gives us 0
+ 77990984 × 00000 that results in 0
+ 77990984 × 400000 yielding 31196393600000
+ 77990984 × 0000000 yielding 0
+ 77990984 × 90000000 that is equal 7019188560000000

= 7050411938480464
