#### Answer

90,300,000

#### Work Step by Step

1. Multiply 43 x 21 = 903
a) Multiply 43 x 1 = 43
b) Write a 0 on line below
c) Multiply 43 x 2 = 86 (next to 0 so it is 860)
d) Add 43 + 860 = 903
2. Count the number of zeroes (5) and add them to the end: 90,300,000