Let's divide 2121989 by 482
We want to figure out the number of times 2121989 can be divided by 482.

On to step 1:
482 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 482

Moving on to step 2:
21 divided by 482 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 482

On to step 3:
482 can be fit into 212 0 times, resulting in a remainder of 212.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 212, we get 212.
Include the next digit (1) from the dividend after 212, then repeat: 2121 / 482

Moving on to step 4:
482 goes into 2121 4 times with a remainder of 193.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 1928 from 2121 to get 193.
Fetch the next digit (9) from the dividend, attach it to 193 and continue: 1939 / 482

Advancing to step 5:
482 can be fit into 1939 4 times, resulting in a remainder of 11.
Use 4 as the next digit of our solution. 
Result so far: 44.0
If we take 1928 away from 1939, we end up with 11.
Grab the next digit (8) from the dividend, add it to 11, then carry on: 118 / 482

Step 6:
118 divided by 482 is 0 with a remainder of 118.
Write down 0 as next digit of the result. 
Result so far: 440.0
If we take 0 away from 118, we end up with 118.
Fetch the next digit (9) from the dividend, attach it to 118 and continue: 1189 / 482

On to step 7:
482 goes into 1189 2 times with a remainder of 225.
Put 2 as the next digit of the answer. 
Result so far: 4402.0
If we subtract 964 from 1189, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Moving on to step 8:
The number 482 fits into 2250 4 times, leaving a remainder of 322.
The number 4 becomes the next digit in our result. 
Result so far: 4402.4
Subtract 1928 from 2250 to get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 9:
482 goes into 3220 6 times with a remainder of 328.
The next digit of our result is 6. 
Result so far: 4402.46
If we subtract 2892 from 3220, 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 10:
If we divide 3280 by 482, we get 6 and a remainder of 388.
Use 6 as the next digit of our solution. 
Result so far: 4402.466
The remainder is 388 after subtracting 2892 from 3280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Our division results in 4402.466 with a remaining 0.0388.