876145 ÷ 78 
The aim is to understand the frequency of 78 in 876145.

Step 1:
8 divided by 78 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 78

Let's proceed to step 2:
78 goes into 87 1 times with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 9 after subtracting 78 from 87.
Fetch the next digit (6) from the dividend, attach it to 9 and continue: 96 / 78

Step 3:
78 can be fit into 96 1 times, resulting in a remainder of 18.
The next digit of our result is 1. 
Result so far: 11.0
Subtract 78 from 96 to get 18.
Include the next digit (1) from the dividend after 18, then repeat: 181 / 78

Moving on to step 4:
181 divided by 78 is 2 with a remainder of 25.
Use 2 as the next digit of our solution. 
Result so far: 112.0
The remainder is 25 after subtracting 156 from 181.
Take the next digit (4) from the dividend and append it to 25, then repeat: 254 / 78

Let's proceed to step 5:
The number 78 fits into 254 3 times, leaving a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 1123.0
Subtracting 234 from 254 leaves us with 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 78

Step 6:
The number 78 fits into 205 2 times, leaving a remainder of 49.
Put 2 as the next digit of the answer. 
Result so far: 11232.0
Deduct 156 from 205 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 7:
If we divide 490 by 78, we get 6 and a remainder of 22.
The next digit of our result is 6. 
Result so far: 11232.6
Deduct 468 from 490 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
When dividing 220 by 78, we get 2 with a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 11232.62
Subtract 156 from 220 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
The number 78 fits into 640 8 times, leaving a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 11232.628
Subtracting 624 from 640 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 10:
If we divide 160 by 78, we get 2 and a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 11232.6282
The remainder is 4 after subtracting 156 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
78 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 11232.6282
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
If we divide 400 by 78, we get 5 and a remainder of 10.
Record the quotient 5 as the next digit in the result. 
Result so far: 11232.628205
Deduct 390 from 400 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
78 can be fit into 100 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 11232.6282051
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 14:
220 divided by 78 is 2 with a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 11232.62820512
Subtract 156 from 220 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 11232.62820512 and a remainder of 6.4e-08.