Let's divide 38902 by 78
The aim is to understand the frequency of 78 in 38902.

Advancing to step 1:
When dividing 3 by 78, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 78

Step 2:
When dividing 38 by 78, we get 0 with a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 38 after subtracting 0 from 38.
Grab the next digit (9) from the dividend, add it to 38, then carry on: 389 / 78

Advancing to step 3:
The number 78 fits into 389 4 times, leaving a remainder of 77.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 312 away from 389, we end up with 77.
Fetch the next digit (0) from the dividend, attach it to 77 and continue: 770 / 78

Step 4:
If we divide 770 by 78, we get 9 and a remainder of 68.
Write down 9 as next digit of the result. 
Result so far: 49.0
Subtracting 702 from 770 leaves us with 68.
Take the next digit (2) from the dividend and append it to 68, then repeat: 682 / 78

Going ahead to step 5:
78 goes into 682 8 times with a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 498.0
If we take 624 away from 682, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 6:
580 divided by 78 is 7 with a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 498.7
Deduct 546 from 580 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 7:
The number 78 fits into 340 4 times, leaving a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 498.74
Subtract 312 from 340 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 8:
The number 78 fits into 280 3 times, leaving a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 498.743
Subtract 234 from 280 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 9:
When dividing 460 by 78, we get 5 with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 498.7435
Subtracting 390 from 460 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 10:
If we divide 700 by 78, we get 8 and a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 498.74358
If we take 624 away from 700, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 11:
78 goes into 760 9 times with a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 498.743589
Subtract 702 from 760 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 12:
78 can be fit into 580 7 times, resulting in a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 498.7435897
The remainder is 34 after subtracting 546 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 13:
78 goes into 340 4 times with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 498.74358974
Subtracting 312 from 340 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 498.74358974, with a leftover of 2.8e-08.