Let's divide 30021217 by 124
We're looking to find how many times 124 goes into 30021217.

Step 1:
The number 124 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 124

On to step 2:
When dividing 30 by 124, we get 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Grab the next digit (0) from the dividend, add it to 30, then carry on: 300 / 124

Let's proceed to step 3:
When dividing 300 by 124, we get 2 with a remainder of 52.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 248 from 300 to get 52.
Append the next digit (2) from the dividend to 52 and continue with: 522 / 124

On to step 4:
The number 124 fits into 522 4 times, leaving a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 24.0
If we subtract 496 from 522, we get 26.
Append the next digit (1) from the dividend to 26 and continue with: 261 / 124

Moving on to step 5:
When dividing 261 by 124, we get 2 with a remainder of 13.
The next digit of our result is 2. 
Result so far: 242.0
Deduct 248 from 261 and we're left with 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 124

Going ahead to step 6:
124 can be fit into 132 1 times, resulting in a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 2421.0
If we take 124 away from 132, we end up with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 124

Moving on to step 7:
124 can be fit into 81 0 times, resulting in a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 24210.0
Subtract 0 from 81 to get 81.
Bring next digit (7) of the dividend behind the 81 and repeat the process: 817 / 124

Going ahead to step 8:
The number 124 fits into 817 6 times, leaving a remainder of 73.
Write down 6 as next digit of the result. 
Result so far: 242106.0
If we take 744 away from 817, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Going ahead to step 9:
124 can be fit into 730 5 times, resulting in a remainder of 110.
Use 5 as the next digit of our solution. 
Result so far: 242106.5
If we subtract 620 from 730, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 10:
1100 divided by 124 is 8 with a remainder of 108.
Use 8 as the next digit of our solution. 
Result so far: 242106.58
Subtract 992 from 1100 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Advancing to step 11:
124 goes into 1080 8 times with a remainder of 88.
Put 8 as the next digit of the answer. 
Result so far: 242106.588
If we subtract 992 from 1080, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

The final result is 242106.588 with a remainder of 0.0088.