816616 ÷ 51 
We want to figure out the number of times 816616 can be divided by 51.

Moving on to step 1:
51 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 51

Advancing to step 2:
51 can be fit into 81 1 times, resulting in a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 51 from 81 leaves us with 30.
Include the next digit (6) from the dividend after 30, then repeat: 306 / 51

Let's proceed to step 3:
The number 51 fits into 306 6 times, leaving a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we take 306 away from 306, we end up with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 51

Advancing to step 4:
51 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 160.0
Subtract 0 from 6 to get 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 51

Moving on to step 5:
The number 51 fits into 61 1 times, leaving a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 1601.0
Subtract 51 from 61 to get 10.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 51

Step 6:
51 can be fit into 106 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 16012.0
If we subtract 102 from 106, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
When dividing 40 by 51, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 16012.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
The number 51 fits into 400 7 times, leaving a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 16012.07
If we take 357 away from 400, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 9:
51 goes into 430 8 times with a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 16012.078
The remainder is 22 after subtracting 408 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 10:
220 divided by 51 is 4 with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 16012.0784
Deduct 204 from 220 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
51 goes into 160 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 16012.07843
If we take 153 away from 160, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 12:
If we divide 70 by 51, we get 1 and a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 16012.078431
Subtract 51 from 70 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 13:
The number 51 fits into 190 3 times, leaving a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 16012.0784313
Subtract 153 from 190 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 14:
51 goes into 370 7 times with a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 16012.07843137
Subtract 357 from 370 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final result is 16012.07843137 with a remainder of 1.3e-08.