78629339 ÷ 300 
The aim is to understand the frequency of 300 in 78629339.

On to step 1:
If we divide 7 by 300, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 300

Going ahead to step 2:
When dividing 78 by 300, we get 0 with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Bring next digit (6) of the dividend behind the 78 and repeat the process: 786 / 300

Moving on to step 3:
The number 300 fits into 786 2 times, leaving a remainder of 186.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 600 from 786 to get 186.
Take the next digit (2) from the dividend and append it to 186, then repeat: 1862 / 300

On to step 4:
When dividing 1862 by 300, we get 6 with a remainder of 62.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we take 1800 away from 1862, we end up with 62.
Append the next digit (9) from the dividend to 62 and continue with: 629 / 300

Advancing to step 5:
The number 300 fits into 629 2 times, leaving a remainder of 29.
Write down 2 as next digit of the result. 
Result so far: 262.0
Deduct 600 from 629 and we're left with 29.
Append the next digit (3) from the dividend to 29 and continue with: 293 / 300

Advancing to step 6:
If we divide 293 by 300, we get 0 and a remainder of 293.
Use 0 as the next digit of our solution. 
Result so far: 2620.0
The remainder is 293 after subtracting 0 from 293.
Include the next digit (3) from the dividend after 293, then repeat: 2933 / 300

Step 7:
If we divide 2933 by 300, we get 9 and a remainder of 233.
Write down 9 as next digit of the result. 
Result so far: 26209.0
Subtracting 2700 from 2933 leaves us with 233.
Fetch the next digit (9) from the dividend, attach it to 233 and continue: 2339 / 300

Let's proceed to step 8:
If we divide 2339 by 300, we get 7 and a remainder of 239.
The number 7 becomes the next digit in our result. 
Result so far: 262097.0
Subtract 2100 from 2339 to get 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

On to step 9:
If we divide 2390 by 300, we get 7 and a remainder of 290.
Write down 7 as next digit of the result. 
Result so far: 262097.7
Subtract 2100 from 2390 to 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 10:
2900 divided by 300 is 9 with a remainder of 200.
Record the quotient 9 as the next digit in the result. 
Result so far: 262097.79
If we take 2700 away from 2900, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 11:
When dividing 2000 by 300, we get 6 with a remainder of 200.
The number 6 becomes the next digit in our result. 
Result so far: 262097.796
Subtract 1800 from 2000 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 12:
When dividing 2000 by 300, we get 6 with a remainder of 200.
Write down 6 as next digit of the result. 
Result so far: 262097.7966
Subtract 1800 from 2000 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Our division results in 262097.7966 with a remaining 0.002.