79186385 divided by 306 
The aim is to understand the frequency of 306 in 79186385.

Step 1:
306 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 306

Moving on to step 2:
79 divided by 306 is 0 with a remainder of 79.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Include the next digit (1) from the dividend after 79, then repeat: 791 / 306

Let's proceed to step 3:
306 can be fit into 791 2 times, resulting in a remainder of 179.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 612 from 791 and we're left with 179.
Include the next digit (8) from the dividend after 179, then repeat: 1798 / 306

Advancing to step 4:
306 goes into 1798 5 times with a remainder of 268.
The next digit of our result is 5. 
Result so far: 25.0
If we subtract 1530 from 1798, we get 268.
Append the next digit (6) from the dividend to 268 and continue with: 2686 / 306

Advancing to step 5:
2686 divided by 306 is 8 with a remainder of 238.
The number 8 becomes the next digit in our result. 
Result so far: 258.0
The remainder is 238 after subtracting 2448 from 2686.
Include the next digit (3) from the dividend after 238, then repeat: 2383 / 306

Step 6:
2383 divided by 306 is 7 with a remainder of 241.
The next digit of our result is 7. 
Result so far: 2587.0
Deduct 2142 from 2383 and we're left with 241.
Include the next digit (8) from the dividend after 241, then repeat: 2418 / 306

Step 7:
The number 306 fits into 2418 7 times, leaving a remainder of 276.
Put 7 as the next digit of the answer. 
Result so far: 25877.0
Subtract 2142 from 2418 to get 276.
Append the next digit (5) from the dividend to 276 and continue with: 2765 / 306

Advancing to step 8:
306 goes into 2765 9 times with a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 258779.0
Deduct 2754 from 2765 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 9:
If we divide 110 by 306, we get 0 and a remainder of 110.
Use 0 as the next digit of our solution. 
Result so far: 258779.0
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 10:
The number 306 fits into 1100 3 times, leaving a remainder of 182.
The number 3 becomes the next digit in our result. 
Result so far: 258779.03
If we take 918 away from 1100, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Advancing to step 11:
If we divide 1820 by 306, we get 5 and a remainder of 290.
Record the quotient 5 as the next digit in the result. 
Result so far: 258779.035
If we subtract 1530 from 1820, we get 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

On to step 12:
When dividing 2900 by 306, we get 9 with a remainder of 146.
Use 9 as the next digit of our solution. 
Result so far: 258779.0359
Subtract 2754 from 2900 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 13:
1460 divided by 306 is 4 with a remainder of 236.
Put 4 as the next digit of the answer. 
Result so far: 258779.03594
Deduct 1224 from 1460 and we're left with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Advancing to step 14:
The number 306 fits into 2360 7 times, leaving a remainder of 218.
Use 7 as the next digit of our solution. 
Result so far: 258779.035947
If we subtract 2142 from 2360, we get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Advancing to step 15:
306 can be fit into 2180 7 times, resulting in a remainder of 38.
Write down 7 as next digit of the result. 
Result so far: 258779.0359477
Subtract 2142 from 2180 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The final outcome is 258779.0359477, with a leftover of 3.8e-07.