We divide 76668280 by 39
The aim is to understand the frequency of 39 in 76668280.

Going ahead to step 1:
If we divide 7 by 39, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 39

On to step 2:
39 goes into 76 1 times with a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 39 from 76 leaves us with 37.
Grab the next digit (6) from the dividend, add it to 37, then carry on: 376 / 39

Going ahead to step 3:
The number 39 fits into 376 9 times, leaving a remainder of 25.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 351 from 376 to get 25.
Bring next digit (6) of the dividend behind the 25 and repeat the process: 256 / 39

Going ahead to step 4:
The number 39 fits into 256 6 times, leaving a remainder of 22.
The next digit of our result is 6. 
Result so far: 196.0
If we subtract 234 from 256, we get 22.
Grab the next digit (8) from the dividend, add it to 22, then carry on: 228 / 39

Going ahead to step 5:
39 goes into 228 5 times with a remainder of 33.
The next digit of our result is 5. 
Result so far: 1965.0
If we take 195 away from 228, we end up with 33.
Grab the next digit (2) from the dividend, add it to 33, then carry on: 332 / 39

Step 6:
When dividing 332 by 39, we get 8 with a remainder of 20.
Record the quotient 8 as the next digit in the result. 
Result so far: 19658.0
Subtract 312 from 332 to get 20.
Include the next digit (8) from the dividend after 20, then repeat: 208 / 39

Step 7:
39 can be fit into 208 5 times, resulting in a remainder of 13.
Write down 5 as next digit of the result. 
Result so far: 196585.0
If we take 195 away from 208, we end up with 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 39

On to step 8:
130 divided by 39 is 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 1965853.0
Subtracting 117 from 130 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 9:
When dividing 130 by 39, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 1965853.3
Deduct 117 from 130 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 10:
When dividing 130 by 39, we get 3 with a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 1965853.33
Deduct 117 from 130 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The quotient of the division is 1965853.33, and the remainder is 0.013.