We're dividing 1802389 by 489 
We want to figure out the number of times 1802389 can be divided by 489.

Going ahead to step 1:
When dividing 1 by 489, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 489

Advancing to step 2:
18 divided by 489 is 0 with a remainder of 18.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 18 and we're left with 18.
Take the next digit (0) from the dividend and append it to 18, then repeat: 180 / 489

Advancing to step 3:
180 divided by 489 is 0 with a remainder of 180.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 180, we get 180.
Grab the next digit (2) from the dividend, add it to 180, then carry on: 1802 / 489

Advancing to step 4:
489 goes into 1802 3 times with a remainder of 335.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 1467 from 1802 leaves us with 335.
Include the next digit (3) from the dividend after 335, then repeat: 3353 / 489

Let's proceed to step 5:
If we divide 3353 by 489, we get 6 and a remainder of 419.
Write down 6 as next digit of the result. 
Result so far: 36.0
Deduct 2934 from 3353 and we're left with 419.
Include the next digit (8) from the dividend after 419, then repeat: 4198 / 489

On to step 6:
When dividing 4198 by 489, we get 8 with a remainder of 286.
Put 8 as the next digit of the answer. 
Result so far: 368.0
Subtracting 3912 from 4198 leaves us with 286.
Take the next digit (9) from the dividend and append it to 286, then repeat: 2869 / 489

Step 7:
489 goes into 2869 5 times with a remainder of 424.
Record the quotient 5 as the next digit in the result. 
Result so far: 3685.0
Subtracting 2445 from 2869 leaves us with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Going ahead to step 8:
489 goes into 4240 8 times with a remainder of 328.
Use 8 as the next digit of our solution. 
Result so far: 3685.8
If we subtract 3912 from 4240, we get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Moving on to step 9:
3280 divided by 489 is 6 with a remainder of 346.
Record the quotient 6 as the next digit in the result. 
Result so far: 3685.86
Deduct 2934 from 3280 and we're left with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Going ahead to step 10:
When dividing 3460 by 489, we get 7 with a remainder of 37.
Record the quotient 7 as the next digit in the result. 
Result so far: 3685.867
Deduct 3423 from 3460 and we're left with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 11:
370 divided by 489 is 0 with a remainder of 370.
Record the quotient 0 as the next digit in the result. 
Result so far: 3685.867
If we take 0 away from 370, we end up with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Step 12:
489 can be fit into 3700 7 times, resulting in a remainder of 277.
Put 7 as the next digit of the answer. 
Result so far: 3685.86707
Deduct 3423 from 3700 and we're left with 277.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2770, and continue the process.

Advancing to step 13:
If we divide 2770 by 489, we get 5 and a remainder of 325.
Write down 5 as next digit of the result. 
Result so far: 3685.867075
Subtracting 2445 from 2770 leaves us with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Going ahead to step 14:
When dividing 3250 by 489, we get 6 with a remainder of 316.
Write down 6 as next digit of the result. 
Result so far: 3685.8670756
The remainder is 316 after subtracting 2934 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Going ahead to step 15:
If we divide 3160 by 489, we get 6 and a remainder of 226.
Write down 6 as next digit of the result. 
Result so far: 3685.86707566
Subtracting 2934 from 3160 leaves us with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

The final outcome is 3685.86707566, with a leftover of 2.26e-07.