12306837 ÷ 365 
The aim is to understand the frequency of 365 in 12306837.

Let's proceed to step 1:
If we divide 1 by 365, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 365

Advancing to step 2:
When dividing 12 by 365, we get 0 with a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 365

Step 3:
365 can be fit into 123 0 times, resulting in a remainder of 123.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 123, we end up with 123.
Bring next digit (0) of the dividend behind the 123 and repeat the process: 1230 / 365

Going ahead to step 4:
The number 365 fits into 1230 3 times, leaving a remainder of 135.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 1095 from 1230 leaves us with 135.
Grab the next digit (6) from the dividend, add it to 135, then carry on: 1356 / 365

Going ahead to step 5:
1356 divided by 365 is 3 with a remainder of 261.
Record the quotient 3 as the next digit in the result. 
Result so far: 33.0
If we subtract 1095 from 1356, we get 261.
Include the next digit (8) from the dividend after 261, then repeat: 2618 / 365

Step 6:
If we divide 2618 by 365, we get 7 and a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 337.0
Subtract 2555 from 2618 to get 63.
Grab the next digit (3) from the dividend, add it to 63, then carry on: 633 / 365

On to step 7:
365 goes into 633 1 times with a remainder of 268.
Put 1 as the next digit of the answer. 
Result so far: 3371.0
Subtracting 365 from 633 leaves us with 268.
Take the next digit (7) from the dividend and append it to 268, then repeat: 2687 / 365

On to step 8:
365 can be fit into 2687 7 times, resulting in a remainder of 132.
Use 7 as the next digit of our solution. 
Result so far: 33717.0
If we take 2555 away from 2687, we end up with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 9:
365 can be fit into 1320 3 times, resulting in a remainder of 225.
Write down 3 as next digit of the result. 
Result so far: 33717.3
If we subtract 1095 from 1320, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Moving on to step 10:
365 goes into 2250 6 times with a remainder of 60.
The next digit of our result is 6. 
Result so far: 33717.36
Deduct 2190 from 2250 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 11:
365 goes into 600 1 times with a remainder of 235.
Record the quotient 1 as the next digit in the result. 
Result so far: 33717.361
If we take 365 away from 600, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 12:
When dividing 2350 by 365, we get 6 with a remainder of 160.
Use 6 as the next digit of our solution. 
Result so far: 33717.3616
If we subtract 2190 from 2350, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 13:
When dividing 1600 by 365, we get 4 with a remainder of 140.
Use 4 as the next digit of our solution. 
Result so far: 33717.36164
Subtracting 1460 from 1600 leaves us with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 14:
The number 365 fits into 1400 3 times, leaving a remainder of 305.
The next digit of our result is 3. 
Result so far: 33717.361643
Deduct 1095 from 1400 and we're left with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Going ahead to step 15:
3050 divided by 365 is 8 with a remainder of 130.
Record the quotient 8 as the next digit in the result. 
Result so far: 33717.3616438
Deduct 2920 from 3050 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 16:
When dividing 1300 by 365, we get 3 with a remainder of 205.
The next digit of our result is 3. 
Result so far: 33717.36164383
If we take 1095 away from 1300, we end up with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

The final result is 33717.36164383 with a remainder of 2.05e-07.