Answer :

- Convert the division problem to a fraction: $\frac{221}{1.3}$.
- Multiply the numerator and denominator by 10 to remove the decimal: $\frac{2210}{13}$.
- Divide 2210 by 13.
- The result of the division is $\boxed{170}$.

### Explanation
1. Understanding the problem
We need to calculate $221

div 1.3$. This is a division problem where we divide 221 by 1.3. To make the calculation easier, we can convert the decimal into a whole number.

2. Transforming the fraction
First, we can express the division as a fraction: $\frac{221}{1.3}$. To get rid of the decimal in the denominator, we multiply both the numerator and the denominator by 10:$$\frac{221}{1.3} = \frac{221 \times 10}{1.3 \times 10} = \frac{2210}{13}$$

3. Performing the division
Now, we perform the division of 2210 by 13. The result of this division is 170.

4. Final Answer
Therefore, $221

div 1.3 = 170$.

### Examples
In real life, you might use this calculation when splitting a bill. For example, if a bill is $221 and you are splitting it among 1.3 'shares' (perhaps someone is paying a bit extra), each share would be $170. This type of calculation is also useful in currency conversion or scaling recipes.