No problem, we've got 83084479 and 45168470 to multiply
83084479 × 45168470 = 45168470 × (83084479)
+ 45168470 × 9 which equals 406516230
+ 45168470 × 70 what gives us 3161792900
+ 45168470 × 400 resulting in 18067388000
+ 45168470 × 4000 which equals 180673880000
+ 45168470 × 80000 that equals 3613477600000
+ 45168470 × 000000 yielding 0
+ 45168470 × 3000000 that is equal 135505410000000
+ 45168470 × 80000000 which equals 3613477600000000

= 3752798797177130
