144640 ÷ 90 
Let's see how many times 90 fits into 144640.

Let's proceed to step 1:
When dividing 1 by 90, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 90

Advancing to step 2:
The number 90 fits into 14 0 times, leaving a remainder of 14.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Grab the next digit (4) from the dividend, add it to 14, then carry on: 144 / 90

Step 3:
90 goes into 144 1 times with a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 90 away from 144, we end up with 54.
Fetch the next digit (6) from the dividend, attach it to 54 and continue: 546 / 90

Advancing to step 4:
546 divided by 90 is 6 with a remainder of 6.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 540 away from 546, we end up with 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 90

Moving on to step 5:
64 divided by 90 is 0 with a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 160.0
If we take 0 away from 64, we end up with 64.
Grab the next digit (0) from the dividend, add it to 64, then carry on: 640 / 90

Advancing to step 6:
640 divided by 90 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 1607.0
The remainder is 10 after subtracting 630 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
100 divided by 90 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 1607.1
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
90 goes into 100 1 times with a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1607.11
Subtracting 90 from 100 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The quotient of the division is 1607.11, and the remainder is 0.01.