We're dividing 616721 by 16 
Let's see how many times 16 fits into 616721.

Advancing to step 1:
The number 16 fits into 6 0 times, leaving a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 16

Let's proceed to step 2:
The number 16 fits into 61 3 times, leaving a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 13 after subtracting 48 from 61.
Bring next digit (6) of the dividend behind the 13 and repeat the process: 136 / 16

Moving on to step 3:
136 divided by 16 is 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
The remainder is 8 after subtracting 128 from 136.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 16

On to step 4:
If we divide 87 by 16, we get 5 and a remainder of 7.
The number 5 becomes the next digit in our result. 
Result so far: 385.0
The remainder is 7 after subtracting 80 from 87.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 16

On to step 5:
72 divided by 16 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 3854.0
Subtracting 64 from 72 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 16

Let's proceed to step 6:
When dividing 81 by 16, we get 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 38545.0
Subtracting 80 from 81 leaves us 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.

On to step 7:
16 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 38545.0
Deduct 0 from 10 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
16 can be fit into 100 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 38545.06
Deduct 96 from 100 and we're left 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.

Moving on to step 9:
40 divided by 16 is 2 with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 38545.062
Subtracting 32 from 40 leaves us with 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 10:
The number 16 fits into 80 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 38545.0625
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.

Let's proceed to step 11:
16 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 38545.0625
Deduct 0 from 0 and we're left 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.

Let's proceed to step 12:
16 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 38545.0625
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.

The final outcome is 38545.0625, with a leftover of 0.0.