The product of two numbers is 1785483. If one of the numbers is 987, what is the other number?

$$\text{Number of cartons} = \frac{4426125}{275} = 16095$$

The number of cartons required is $\boxed{16095}$.

2.

$$\text{Cost of one radio} = \frac{1664212}{347} = 4796$$

The cost of one radio is ₹ $\boxed{4796}$.

3.

$$\text{Cost of one quintal} = \frac{1214400}{736} = 1650$$

The cost of one quintal of wheat is ₹ $\boxed{1650}$.

4.

$$\text{Weight per truck} = \frac{1711875 \text{ kg}}{249} = 6875 \text{ kg}$$

One truck can carry $\boxed{6875 \text{ kg}}$.

5.

$$\text{Capacity of one tank} = \frac{1323025 \text{ litres}}{187} = 7075 \text{ litres}$$

The capacity of one water tank is $\boxed{7075 \text{ litres}}$.

6.

$$\text{Cost of one calculator} = \frac{742755}{18} = 41264.166...$$

Since cost is usually in whole currency units or two decimal places, and this is a word problem, it's possible there's a slight error in the problem statement or an expectation of rounding. However, without further instruction, we'll provide the exact decimal.
The cost of one calculator is ₹ $\boxed{41264.17}$ (rounded to two decimal places).

7.

$$\text{Number of calculators sold} = \frac{742755}{845} = 880$$

The shopkeeper sold $\boxed{880}$ calculators.

8.

$$\text{Number of shelves} = \frac{669375}{375} = 1785$$

The number of shelves needed is $\boxed{1785}$.

9.

$$\text{Average persons per day} = \frac{950589}{327} = 2907$$

On average, $\boxed{2907}$ persons visited Appu Ghar in one day.

10.

$$1633500 \div 182$$ $$1633500 = 182 \times 8975 + 50$$

The quotient is 8975 and the remainder is 50.
The number of bundles made is $\boxed{8975}$ and $\boxed{50 \text{ metres}}$ of wire will remain unpacked.

11.

$$\text{Other number} = \frac{1785483}{987} = 1809$$

The other number is $\boxed{1809}$.