No problem, we've got 7654341 and 20521450 to multiply
7654341 × 20521450 = 20521450 × (7654341)
+ 20521450 × 1 that equals 20521450
+ 20521450 × 40 giving us 820858000
+ 20521450 × 300 which equals 6156435000
+ 20521450 × 4000 what gives us 82085800000
+ 20521450 × 50000 that is equal 1026072500000
+ 20521450 × 600000 giving us 12312870000000
+ 20521450 × 7000000 that is equal 143650150000000

= 157078176114450
