339320 ÷ 78 
The aim is to understand the frequency of 78 in 339320.

On to step 1:
When dividing 3 by 78, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 78

Let's proceed to step 2:
78 can be fit into 33 0 times, resulting in a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Take the next digit (9) from the dividend and append it to 33, then repeat: 339 / 78

Going ahead to step 3:
If we divide 339 by 78, we get 4 and a remainder of 27.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 312 from 339 leaves us with 27.
Take the next digit (3) from the dividend and append it to 27, then repeat: 273 / 78

On to step 4:
78 goes into 273 3 times with a remainder of 39.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Deduct 234 from 273 and we're left with 39.
Grab the next digit (2) from the dividend, add it to 39, then carry on: 392 / 78

On to step 5:
78 goes into 392 5 times with a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 435.0
If we subtract 390 from 392, we get 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 78

Advancing to step 6:
If we divide 20 by 78, we get 0 and a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 4350.0
If we subtract 0 from 20, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
78 goes into 200 2 times with a remainder of 44.
The number 2 becomes the next digit in our result. 
Result so far: 4350.2
Subtract 156 from 200 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 8:
440 divided by 78 is 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 4350.25
If we take 390 away from 440, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
500 divided by 78 is 6 with a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 4350.256
Deduct 468 from 500 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 10:
When dividing 320 by 78, we get 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 4350.2564
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
When dividing 80 by 78, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 4350.25641
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 12:
78 goes into 20 0 times with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 4350.25641
The remainder is 20 after subtracting 0 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 13:
200 divided by 78 is 2 with a remainder of 44.
The next digit of our result is 2. 
Result so far: 4350.2564102
If we subtract 156 from 200, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 14:
The number 78 fits into 440 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 4350.25641025
If we take 390 away from 440, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final outcome is 4350.25641025, with a leftover of 5e-08.