We're dividing 124866 by 16 
We want to figure out the number of times 124866 can be divided by 16.

Step 1:
The number 16 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 16

Step 2:
The number 16 fits into 12 0 times, leaving a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Take the next digit (4) from the dividend and append it to 12, then repeat: 124 / 16

Step 3:
16 goes into 124 7 times with a remainder of 12.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 112 from 124 leaves us with 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 16

On to step 4:
If we divide 128 by 16, we get 8 and a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 78.0
Subtract 128 from 128 to get 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 16

Moving on to step 5:
If we divide 6 by 16, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 780.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 16

Step 6:
If we divide 66 by 16, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 7804.0
Subtract 64 from 66 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
If we divide 20 by 16, we get 1 and a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 7804.1
If we take 16 away from 20, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 8:
The number 16 fits into 40 2 times, leaving a remainder of 8.
The next digit of our result is 2. 
Result so far: 7804.12
Subtract 32 from 40 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
If we divide 80 by 16, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 7804.125
If we subtract 80 from 80, we 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.

Going ahead to step 10:
When dividing 0 by 16, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 7804.125
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 11:
The number 16 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 7804.125
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 7804.125, with a leftover of 0.0.