No problem, we've got 21349523 and 45916541 to multiply
21349523 × 45916541 = 45916541 × (21349523)
+ 45916541 × 3 giving us 137749623
+ 45916541 × 20 producing 918330820
+ 45916541 × 500 which equals 22958270500
+ 45916541 × 9000 what gives us 413248869000
+ 45916541 × 40000 what gives us 1836661640000
+ 45916541 × 300000 giving us 13774962300000
+ 45916541 × 1000000 which equals 45916541000000
+ 45916541 × 20000000 producing 918330820000000

= 980296248159943
