Let's divide 438849 by 78
The aim is to understand the frequency of 78 in 438849.

Advancing to step 1:
If we divide 4 by 78, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 78

Moving on to step 2:
78 goes into 43 0 times with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Include the next digit (8) from the dividend after 43, then repeat: 438 / 78

Going ahead to step 3:
The number 78 fits into 438 5 times, leaving a remainder of 48.
Put 5 as the next digit of the answer. 
Result so far: 5.0
The remainder is 48 after subtracting 390 from 438.
Bring next digit (8) of the dividend behind the 48 and repeat the process: 488 / 78

Going ahead to step 4:
If we divide 488 by 78, we get 6 and a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 56.0
Subtract 468 from 488 to get 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 78

Let's proceed to step 5:
204 divided by 78 is 2 with a remainder of 48.
The next digit of our result is 2. 
Result so far: 562.0
Subtracting 156 from 204 leaves us with 48.
Take the next digit (9) from the dividend and append it to 48, then repeat: 489 / 78

Advancing to step 6:
When dividing 489 by 78, we get 6 with a remainder of 21.
Write down 6 as next digit of the result. 
Result so far: 5626.0
Subtracting 468 from 489 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 7:
210 divided by 78 is 2 with a remainder of 54.
Use 2 as the next digit of our solution. 
Result so far: 5626.2
The remainder is 54 after subtracting 156 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 8:
The number 78 fits into 540 6 times, leaving a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 5626.26
Subtracting 468 from 540 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 9:
The number 78 fits into 720 9 times, leaving a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 5626.269
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 10:
78 can be fit into 180 2 times, resulting in a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 5626.2692
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 11:
240 divided by 78 is 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 5626.26923
Subtracting 234 from 240 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 12:
78 goes into 60 0 times with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5626.26923
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
600 divided by 78 is 7 with a remainder of 54.
The number 7 becomes the next digit in our result. 
Result so far: 5626.2692307
The remainder is 54 after subtracting 546 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 14:
The number 78 fits into 540 6 times, leaving a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 5626.26923076
If we take 468 away from 540, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 5626.26923076 and a remainder of 7.2e-08.