We look at the division of 489749 by 4 
We want to figure out the number of times 489749 can be divided by 4.

Moving on to step 1:
4 goes into 4 1 times with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 4 from 4 and we're left with 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 4

Let's proceed to step 2:
4 can be fit into 8 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we subtract 8 from 8, we get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 4

Going ahead to step 3:
9 divided by 4 is 2 with a remainder of 1.
Use 2 as the next digit of our solution. 
Result so far: 122.0
The remainder is 1 after subtracting 8 from 9.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 4

Step 4:
If we divide 17 by 4, we get 4 and a remainder of 1.
The next digit of our result is 4. 
Result so far: 1224.0
The remainder is 1 after subtracting 16 from 17.
Grab the next digit (4) from the dividend, add it to 1, then carry on: 14 / 4

Step 5:
4 goes into 14 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 12243.0
Deduct 12 from 14 and we're left with 2.
Take the next digit (9) from the dividend and append it to 2, then repeat: 29 / 4

Going ahead to step 6:
29 divided by 4 is 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 122437.0
If we take 28 away from 29, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
4 can be fit into 10 2 times, resulting in a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 122437.2
The remainder is 2 after subtracting 8 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
If we divide 20 by 4, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 122437.25
Subtract 20 from 20 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 122437.25
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
When dividing 0 by 4, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 122437.25
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 122437.25 with a remaining 0.0.