We look at the division of 16009815 by 109 
We're looking to find how many times 109 goes into 16009815.

Let's proceed to step 1:
1 divided by 109 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 109

Going ahead to step 2:
109 can be fit into 16 0 times, resulting in a remainder of 16.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Append the next digit (0) from the dividend to 16 and continue with: 160 / 109

On to step 3:
The number 109 fits into 160 1 times, leaving a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 51 after subtracting 109 from 160.
Bring next digit (0) of the dividend behind the 51 and repeat the process: 510 / 109

On to step 4:
109 goes into 510 4 times with a remainder of 74.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 436 from 510 and we're left with 74.
Bring next digit (9) of the dividend behind the 74 and repeat the process: 749 / 109

On to step 5:
749 divided by 109 is 6 with a remainder of 95.
Use 6 as the next digit of our solution. 
Result so far: 146.0
If we take 654 away from 749, we end up with 95.
Grab the next digit (8) from the dividend, add it to 95, then carry on: 958 / 109

Advancing to step 6:
If we divide 958 by 109, we get 8 and a remainder of 86.
The number 8 becomes the next digit in our result. 
Result so far: 1468.0
Subtracting 872 from 958 leaves us with 86.
Bring next digit (1) of the dividend behind the 86 and repeat the process: 861 / 109

Step 7:
109 can be fit into 861 7 times, resulting in a remainder of 98.
Write down 7 as next digit of the result. 
Result so far: 14687.0
The remainder is 98 after subtracting 763 from 861.
Grab the next digit (5) from the dividend, add it to 98, then carry on: 985 / 109

Moving on to step 8:
109 can be fit into 985 9 times, resulting in a remainder of 4.
The next digit of our result is 9. 
Result so far: 146879.0
If we subtract 981 from 985, 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.

On to step 9:
109 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 146879.0
The remainder is 40 after subtracting 0 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
If we divide 400 by 109, we get 3 and a remainder of 73.
Write down 3 as next digit of the result. 
Result so far: 146879.03
If we subtract 327 from 400, we get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Advancing to step 11:
730 divided by 109 is 6 with a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 146879.036
The remainder is 76 after subtracting 654 from 730.
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 12:
When dividing 760 by 109, we get 6 with a remainder of 106.
The next digit of our result is 6. 
Result so far: 146879.0366
If we subtract 654 from 760, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

After the division, we end up with 146879.0366 and a remainder of 0.00106.