No problem, we've got 72002945 and 80403213 to multiply
72002945 × 80403213 = 80403213 × (72002945)
+ 80403213 × 5 that results in 402016065
+ 80403213 × 40 which equals 3216128520
+ 80403213 × 900 that results in 72362891700
+ 80403213 × 2000 what gives us 160806426000
+ 80403213 × 00000 giving us 0
+ 80403213 × 000000 that is equal 0
+ 80403213 × 2000000 that equals 160806426000000
+ 80403213 × 70000000 resulting in 5628224910000000

= 5789268123462285
