336213 ÷ 86 
The aim is to understand the frequency of 86 in 336213.

Step 1:
The number 86 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 86

Step 2:
33 divided by 86 is 0 with a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Include the next digit (6) from the dividend after 33, then repeat: 336 / 86

Step 3:
When dividing 336 by 86, we get 3 with a remainder of 78.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 78 after subtracting 258 from 336.
Bring next digit (2) of the dividend behind the 78 and repeat the process: 782 / 86

On to step 4:
When dividing 782 by 86, we get 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 39.0
Subtract 774 from 782 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 86

On to step 5:
The number 86 fits into 81 0 times, leaving a remainder of 81.
The next digit of our result is 0. 
Result so far: 390.0
Subtracting 0 from 81 leaves us with 81.
Fetch the next digit (3) from the dividend, attach it to 81 and continue: 813 / 86

Advancing to step 6:
The number 86 fits into 813 9 times, leaving a remainder of 39.
Use 9 as the next digit of our solution. 
Result so far: 3909.0
Subtracting 774 from 813 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 7:
The number 86 fits into 390 4 times, leaving a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 3909.4
If we subtract 344 from 390, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
When dividing 460 by 86, we get 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 3909.45
Subtract 430 from 460 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
The number 86 fits into 300 3 times, leaving a remainder of 42.
The next digit of our result is 3. 
Result so far: 3909.453
If we take 258 away from 300, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 10:
86 can be fit into 420 4 times, resulting in a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 3909.4534
If we take 344 away from 420, we end up with 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:
86 can be fit into 760 8 times, resulting in a remainder of 72.
The next digit of our result is 8. 
Result so far: 3909.45348
Subtract 688 from 760 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 12:
If we divide 720 by 86, we get 8 and a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 3909.453488
The remainder is 32 after subtracting 688 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 3909.453488, and the remainder is 3.2e-06.