225042 divided by 78 
The aim is to understand the frequency of 78 in 225042.

On to step 1:
The number 78 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 78

Advancing to step 2:
The number 78 fits into 22 0 times, leaving a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 22 leaves us with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 78

Going ahead to step 3:
If we divide 225 by 78, we get 2 and a remainder of 69.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 69 after subtracting 156 from 225.
Take the next digit (0) from the dividend and append it to 69, then repeat: 690 / 78

Let's proceed to step 4:
If we divide 690 by 78, we get 8 and a remainder of 66.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we take 624 away from 690, we end up with 66.
Fetch the next digit (4) from the dividend, attach it to 66 and continue: 664 / 78

Step 5:
When dividing 664 by 78, we get 8 with a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 288.0
If we take 624 away from 664, we end up with 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 78

Advancing to step 6:
When dividing 402 by 78, we get 5 with a remainder of 12.
Record the quotient 5 as the next digit in the result. 
Result so far: 2885.0
Subtracting 390 from 402 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 7:
When dividing 120 by 78, we get 1 with a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 2885.1
The remainder is 42 after subtracting 78 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
420 divided by 78 is 5 with a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 2885.15
Subtract 390 from 420 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
78 goes into 300 3 times with a remainder of 66.
Write down 3 as next digit of the result. 
Result so far: 2885.153
Subtracting 234 from 300 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 10:
78 can be fit into 660 8 times, resulting in a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 2885.1538
Subtract 624 from 660 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 11:
360 divided by 78 is 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 2885.15384
If we subtract 312 from 360, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 12:
78 can be fit into 480 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 2885.153846
Subtracting 468 from 480 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 13:
78 goes into 120 1 times with a remainder of 42.
Use 1 as the next digit of our solution. 
Result so far: 2885.1538461
The remainder is 42 after subtracting 78 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 14:
If we divide 420 by 78, we get 5 and a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 2885.15384615
Deduct 390 from 420 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 2885.15384615 and a remainder of 3e-08.