143996 divided by 78 
The aim is to understand the frequency of 78 in 143996.

Moving on to step 1:
If we divide 1 by 78, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 78

Moving on to step 2:
78 can be fit into 14 0 times, resulting in a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 14 and we're left with 14.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 78

Step 3:
The number 78 fits into 143 1 times, leaving a remainder of 65.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 78 from 143 leaves us with 65.
Append the next digit (9) from the dividend to 65 and continue with: 659 / 78

Going ahead to step 4:
The number 78 fits into 659 8 times, leaving a remainder of 35.
The next digit of our result is 8. 
Result so far: 18.0
Subtracting 624 from 659 leaves us with 35.
Include the next digit (9) from the dividend after 35, then repeat: 359 / 78

Let's proceed to step 5:
If we divide 359 by 78, we get 4 and a remainder of 47.
Use 4 as the next digit of our solution. 
Result so far: 184.0
The remainder is 47 after subtracting 312 from 359.
Include the next digit (6) from the dividend after 47, then repeat: 476 / 78

Step 6:
The number 78 fits into 476 6 times, leaving a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 1846.0
If we subtract 468 from 476, we 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.

Let's proceed to step 7:
78 can be fit into 80 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 1846.1
Deduct 78 from 80 and we're left with 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 8:
20 divided by 78 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1846.1
If we take 0 away from 20, we end up with 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 9:
The number 78 fits into 200 2 times, leaving a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 1846.102
Subtracting 156 from 200 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 10:
When dividing 440 by 78, we get 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 1846.1025
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.

Moving on to step 11:
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: 1846.10256
The remainder is 32 after subtracting 468 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 12:
When dividing 320 by 78, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 1846.102564
If we take 312 away from 320, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 13:
78 can be fit into 80 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1846.1025641
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.

Step 14:
When dividing 20 by 78, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 1846.1025641
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Our division results in 1846.1025641 with a remaining 2e-08.