We divide 16136806 by 309
The aim is to understand the frequency of 309 in 16136806.

On to step 1:
1 divided by 309 is 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 309

Step 2:
16 divided by 309 is 0 with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 16, we end up with 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 309

Going ahead to step 3:
309 can be fit into 161 0 times, resulting in a remainder of 161.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 161 leaves us with 161.
Bring next digit (3) of the dividend behind the 161 and repeat the process: 1613 / 309

On to step 4:
The number 309 fits into 1613 5 times, leaving a remainder of 68.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 68 after subtracting 1545 from 1613.
Include the next digit (6) from the dividend after 68, then repeat: 686 / 309

Step 5:
309 can be fit into 686 2 times, resulting in a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
Subtracting 618 from 686 leaves us with 68.
Append the next digit (8) from the dividend to 68 and continue with: 688 / 309

Step 6:
688 divided by 309 is 2 with a remainder of 70.
The number 2 becomes the next digit in our result. 
Result so far: 522.0
Deduct 618 from 688 and we're left with 70.
Grab the next digit (0) from the dividend, add it to 70, then carry on: 700 / 309

Step 7:
309 goes into 700 2 times with a remainder of 82.
Record the quotient 2 as the next digit in the result. 
Result so far: 5222.0
Deduct 618 from 700 and we're left with 82.
Bring next digit (6) of the dividend behind the 82 and repeat the process: 826 / 309

Moving on to step 8:
309 can be fit into 826 2 times, resulting in a remainder of 208.
The number 2 becomes the next digit in our result. 
Result so far: 52222.0
Deduct 618 from 826 and we're left 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.

Going ahead to step 9:
When dividing 2080 by 309, we get 6 with a remainder of 226.
Record the quotient 6 as the next digit in the result. 
Result so far: 52222.6
The remainder is 226 after subtracting 1854 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Going ahead to step 10:
When dividing 2260 by 309, we get 7 with a remainder of 97.
The number 7 becomes the next digit in our result. 
Result so far: 52222.67
If we subtract 2163 from 2260, we get 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Going ahead to step 11:
When dividing 970 by 309, we get 3 with a remainder of 43.
Use 3 as the next digit of our solution. 
Result so far: 52222.673
Subtract 927 from 970 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

On to step 12:
309 can be fit into 430 1 times, resulting in a remainder of 121.
The number 1 becomes the next digit in our result. 
Result so far: 52222.6731
If we take 309 away from 430, we end up with 121.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1210, and continue the process.

Going ahead to step 13:
If we divide 1210 by 309, we get 3 and a remainder of 283.
Record the quotient 3 as the next digit in the result. 
Result so far: 52222.67313
The remainder is 283 after subtracting 927 from 1210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

On to step 14:
When dividing 2830 by 309, we get 9 with a remainder of 49.
The next digit of our result is 9. 
Result so far: 52222.673139
The remainder is 49 after subtracting 2781 from 2830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 15:
490 divided by 309 is 1 with a remainder of 181.
Use 1 as the next digit of our solution. 
Result so far: 52222.6731391
Subtracting 309 from 490 leaves us with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

On to step 16:
When dividing 1810 by 309, we get 5 with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 52222.67313915
The remainder is 265 after subtracting 1545 from 1810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The quotient of the division is 52222.67313915, and the remainder is 2.65e-07.