We divide 123406 by 78
The aim is to understand the frequency of 78 in 123406.

Going ahead to step 1:
78 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 78

On to step 2:
78 can be fit into 12 0 times, resulting in a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 78

Let's proceed to step 3:
If we divide 123 by 78, we get 1 and a remainder of 45.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 78 from 123 to get 45.
Append the next digit (4) from the dividend to 45 and continue with: 454 / 78

On to step 4:
454 divided by 78 is 5 with a remainder of 64.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
If we subtract 390 from 454, we get 64.
Take the next digit (0) from the dividend and append it to 64, then repeat: 640 / 78

Moving on to step 5:
78 goes into 640 8 times with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 158.0
Subtract 624 from 640 to get 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 78

Moving on to step 6:
If we divide 166 by 78, we get 2 and a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 1582.0
If we subtract 156 from 166, we get 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 7:
100 divided by 78 is 1 with a remainder of 22.
The next digit of our result is 1. 
Result so far: 1582.1
Deduct 78 from 100 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.

Step 8:
220 divided by 78 is 2 with a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 1582.12
If we subtract 156 from 220, we 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.

Step 9:
640 divided by 78 is 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 1582.128
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:
When dividing 160 by 78, we get 2 with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1582.1282
If we take 156 away from 160, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
If we divide 40 by 78, we get 0 and a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1582.1282
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.

On to step 12:
400 divided by 78 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 1582.128205
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.

Let's proceed to step 13:
100 divided by 78 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1582.1282051
The remainder is 22 after subtracting 78 from 100.
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:
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: 1582.12820512
If we subtract 156 from 220, we 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.

The final result is 1582.12820512 with a remainder of 6.4e-08.