We look at the division of 21514349 by 124 
We want to divide 21514349 by 124.

Step 1:
The number 124 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 124

Step 2:
The number 124 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 124

On to step 3:
The number 124 fits into 215 1 times, leaving a remainder of 91.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 91 after subtracting 124 from 215.
Append the next digit (1) from the dividend to 91 and continue with: 911 / 124

Let's proceed to step 4:
911 divided by 124 is 7 with a remainder of 43.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 43 after subtracting 868 from 911.
Take the next digit (4) from the dividend and append it to 43, then repeat: 434 / 124

Advancing to step 5:
If we divide 434 by 124, we get 3 and a remainder of 62.
The next digit of our result is 3. 
Result so far: 173.0
If we subtract 372 from 434, we get 62.
Fetch the next digit (3) from the dividend, attach it to 62 and continue: 623 / 124

Let's proceed to step 6:
The number 124 fits into 623 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 1735.0
The remainder is 3 after subtracting 620 from 623.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 124

Moving on to step 7:
34 divided by 124 is 0 with a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 17350.0
Deduct 0 from 34 and we're left with 34.
Include the next digit (9) from the dividend after 34, then repeat: 349 / 124

Let's proceed to step 8:
349 divided by 124 is 2 with a remainder of 101.
Write down 2 as next digit of the result. 
Result so far: 173502.0
Deduct 248 from 349 and we're left with 101.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1010, and continue the process.

Going ahead to step 9:
124 goes into 1010 8 times with a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 173502.8
Subtract 992 from 1010 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
The number 124 fits into 180 1 times, leaving a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 173502.81
Subtract 124 from 180 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 11:
The number 124 fits into 560 4 times, leaving a remainder of 64.
Use 4 as the next digit of our solution. 
Result so far: 173502.814
Deduct 496 from 560 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 12:
640 divided by 124 is 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 173502.8145
Subtracting 620 from 640 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
124 goes into 200 1 times with a remainder of 76.
The next digit of our result is 1. 
Result so far: 173502.81451
Subtract 124 from 200 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 14:
124 goes into 760 6 times with a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 173502.814516
Subtract 744 from 760 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 15:
When dividing 160 by 124, we get 1 with a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 173502.8145161
Deduct 124 from 160 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 16:
360 divided by 124 is 2 with a remainder of 112.
The next digit of our result is 2. 
Result so far: 173502.81451612
If we take 248 away from 360, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Our division results in 173502.81451612 with a remaining 1.12e-07.