Let's divide 8305405 by 486
The aim is to understand the frequency of 486 in 8305405.

Going ahead to step 1:
If we divide 8 by 486, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 486

Going ahead to step 2:
If we divide 83 by 486, we get 0 and a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Append the next digit (0) from the dividend to 83 and continue with: 830 / 486

Going ahead to step 3:
486 can be fit into 830 1 times, resulting in a remainder of 344.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 486 from 830 leaves us with 344.
Append the next digit (5) from the dividend to 344 and continue with: 3445 / 486

Advancing to step 4:
486 goes into 3445 7 times with a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
The remainder is 43 after subtracting 3402 from 3445.
Include the next digit (4) from the dividend after 43, then repeat: 434 / 486

Advancing to step 5:
If we divide 434 by 486, we get 0 and a remainder of 434.
The next digit of our result is 0. 
Result so far: 170.0
Subtract 0 from 434 to get 434.
Bring next digit (0) of the dividend behind the 434 and repeat the process: 4340 / 486

Moving on to step 6:
If we divide 4340 by 486, we get 8 and a remainder of 452.
The number 8 becomes the next digit in our result. 
Result so far: 1708.0
The remainder is 452 after subtracting 3888 from 4340.
Include the next digit (5) from the dividend after 452, then repeat: 4525 / 486

Let's proceed to step 7:
486 goes into 4525 9 times with a remainder of 151.
Use 9 as the next digit of our solution. 
Result so far: 17089.0
Deduct 4374 from 4525 and we're left with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

On to step 8:
The number 486 fits into 1510 3 times, leaving a remainder of 52.
Record the quotient 3 as the next digit in the result. 
Result so far: 17089.3
Subtract 1458 from 1510 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 9:
If we divide 520 by 486, we get 1 and a remainder of 34.
The next digit of our result is 1. 
Result so far: 17089.31
Subtract 486 from 520 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 10:
340 divided by 486 is 0 with a remainder of 340.
The number 0 becomes the next digit in our result. 
Result so far: 17089.31
Subtracting 0 from 340 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 11:
When dividing 3400 by 486, we get 6 with a remainder of 484.
The number 6 becomes the next digit in our result. 
Result so far: 17089.3106
Subtracting 2916 from 3400 leaves us with 484.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4840, and continue the process.

Moving on to step 12:
4840 divided by 486 is 9 with a remainder of 466.
Record the quotient 9 as the next digit in the result. 
Result so far: 17089.31069
Deduct 4374 from 4840 and we're left with 466.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4660, and continue the process.

Step 13:
The number 486 fits into 4660 9 times, leaving a remainder of 286.
The next digit of our result is 9. 
Result so far: 17089.310699
Deduct 4374 from 4660 and we're left with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Our division results in 17089.310699 with a remaining 2.86e-05.