8684090 divided by 336 
The aim is to understand the frequency of 336 in 8684090.

Going ahead to step 1:
When dividing 8 by 336, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 336

Let's proceed to step 2:
When dividing 86 by 336, we get 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Include the next digit (8) from the dividend after 86, then repeat: 868 / 336

Let's proceed to step 3:
868 divided by 336 is 2 with a remainder of 196.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 672 away from 868, we end up with 196.
Include the next digit (4) from the dividend after 196, then repeat: 1964 / 336

Let's proceed to step 4:
1964 divided by 336 is 5 with a remainder of 284.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtract 1680 from 1964 to get 284.
Take the next digit (0) from the dividend and append it to 284, then repeat: 2840 / 336

Step 5:
336 goes into 2840 8 times with a remainder of 152.
Put 8 as the next digit of the answer. 
Result so far: 258.0
Subtracting 2688 from 2840 leaves us with 152.
Append the next digit (9) from the dividend to 152 and continue with: 1529 / 336

Let's proceed to step 6:
336 can be fit into 1529 4 times, resulting in a remainder of 185.
Write down 4 as next digit of the result. 
Result so far: 2584.0
Subtract 1344 from 1529 to get 185.
Include the next digit (0) from the dividend after 185, then repeat: 1850 / 336

Let's proceed to step 7:
The number 336 fits into 1850 5 times, leaving a remainder of 170.
Put 5 as the next digit of the answer. 
Result so far: 25845.0
Subtracting 1680 from 1850 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 8:
1700 divided by 336 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 25845.5
Subtract 1680 from 1700 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 9:
200 divided by 336 is 0 with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 25845.5
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 10:
The number 336 fits into 2000 5 times, leaving a remainder of 320.
The number 5 becomes the next digit in our result. 
Result so far: 25845.505
The remainder is 320 after subtracting 1680 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 11:
336 can be fit into 3200 9 times, resulting in a remainder of 176.
The next digit of our result is 9. 
Result so far: 25845.5059
Deduct 3024 from 3200 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 12:
If we divide 1760 by 336, we get 5 and a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 25845.50595
Subtract 1680 from 1760 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
800 divided by 336 is 2 with a remainder of 128.
Use 2 as the next digit of our solution. 
Result so far: 25845.505952
The remainder is 128 after subtracting 672 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 14:
If we divide 1280 by 336, we get 3 and a remainder of 272.
The next digit of our result is 3. 
Result so far: 25845.5059523
If we subtract 1008 from 1280, we get 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 15:
When dividing 2720 by 336, we get 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 25845.50595238
The remainder is 32 after subtracting 2688 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 25845.50595238 with a remaining 3.2e-08.