We look at the division of 39903739 by 816 
We're looking to find how many times 816 goes into 39903739.

Advancing to step 1:
The number 816 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 816

Going ahead to step 2:
The number 816 fits into 39 0 times, leaving a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 816

Step 3:
The number 816 fits into 399 0 times, leaving a remainder of 399.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 399, we end up with 399.
Bring next digit (0) of the dividend behind the 399 and repeat the process: 3990 / 816

On to step 4:
816 goes into 3990 4 times with a remainder of 726.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 3264 from 3990 and we're left with 726.
Take the next digit (3) from the dividend and append it to 726, then repeat: 7263 / 816

Moving on to step 5:
When dividing 7263 by 816, we get 8 with a remainder of 735.
Use 8 as the next digit of our solution. 
Result so far: 48.0
If we subtract 6528 from 7263, we get 735.
Include the next digit (7) from the dividend after 735, then repeat: 7357 / 816

Advancing to step 6:
If we divide 7357 by 816, we get 9 and a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 489.0
If we take 7344 away from 7357, we end up with 13.
Bring next digit (3) of the dividend behind the 13 and repeat the process: 133 / 816

Going ahead to step 7:
The number 816 fits into 133 0 times, leaving a remainder of 133.
Record the quotient 0 as the next digit in the result. 
Result so far: 4890.0
The remainder is 133 after subtracting 0 from 133.
Grab the next digit (9) from the dividend, add it to 133, then carry on: 1339 / 816

On to step 8:
If we divide 1339 by 816, we get 1 and a remainder of 523.
Use 1 as the next digit of our solution. 
Result so far: 48901.0
If we take 816 away from 1339, we end up with 523.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5230, and continue the process.

Let's proceed to step 9:
816 goes into 5230 6 times with a remainder of 334.
Put 6 as the next digit of the answer. 
Result so far: 48901.6
Deduct 4896 from 5230 and we're left with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Step 10:
3340 divided by 816 is 4 with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 48901.64
Subtract 3264 from 3340 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.

Let's proceed to step 11:
816 can be fit into 760 0 times, resulting in a remainder of 760.
Record the quotient 0 as the next digit in the result. 
Result so far: 48901.64
If we take 0 away from 760, we end up with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

On to step 12:
When dividing 7600 by 816, we get 9 with a remainder of 256.
Record the quotient 9 as the next digit in the result. 
Result so far: 48901.6409
If we take 7344 away from 7600, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Moving on to step 13:
The number 816 fits into 2560 3 times, leaving a remainder of 112.
The number 3 becomes the next digit in our result. 
Result so far: 48901.64093
Subtracting 2448 from 2560 leaves us 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.

Moving on to step 14:
If we divide 1120 by 816, we get 1 and a remainder of 304.
Use 1 as the next digit of our solution. 
Result so far: 48901.640931
If we subtract 816 from 1120, we get 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Going ahead to step 15:
If we divide 3040 by 816, we get 3 and a remainder of 592.
Use 3 as the next digit of our solution. 
Result so far: 48901.6409313
The remainder is 592 after subtracting 2448 from 3040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Advancing to step 16:
The number 816 fits into 5920 7 times, leaving a remainder of 208.
Record the quotient 7 as the next digit in the result. 
Result so far: 48901.64093137
Subtracting 5712 from 5920 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

The quotient of the division is 48901.64093137, and the remainder is 2.08e-07.