We're dividing 8428157 by 78 
The aim is to understand the frequency of 78 in 8428157.

Advancing to step 1:
78 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 78

Moving on to step 2:
If we divide 84 by 78, we get 1 and a remainder of 6.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 78 from 84 to get 6.
Take the next digit (2) from the dividend and append it to 6, then repeat: 62 / 78

Advancing to step 3:
62 divided by 78 is 0 with a remainder of 62.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we take 0 away from 62, we end up with 62.
Bring next digit (8) of the dividend behind the 62 and repeat the process: 628 / 78

On to step 4:
78 goes into 628 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
Subtracting 624 from 628 leaves us with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 78

On to step 5:
78 can be fit into 41 0 times, resulting in a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 1080.0
If we subtract 0 from 41, we get 41.
Append the next digit (5) from the dividend to 41 and continue with: 415 / 78

Advancing to step 6:
78 can be fit into 415 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 10805.0
Subtract 390 from 415 to get 25.
Grab the next digit (7) from the dividend, add it to 25, then carry on: 257 / 78

Advancing to step 7:
When dividing 257 by 78, we get 3 with a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 108053.0
If we take 234 away from 257, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 8:
The number 78 fits into 230 2 times, leaving a remainder of 74.
The next digit of our result is 2. 
Result so far: 108053.2
Subtract 156 from 230 to get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 9:
78 goes into 740 9 times with a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 108053.29
Subtracting 702 from 740 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 10:
78 goes into 380 4 times with a remainder of 68.
Put 4 as the next digit of the answer. 
Result so far: 108053.294
If we subtract 312 from 380, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 11:
When dividing 680 by 78, we get 8 with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 108053.2948
Subtracting 624 from 680 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 12:
The number 78 fits into 560 7 times, leaving a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 108053.29487
Deduct 546 from 560 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 13:
If we divide 140 by 78, we get 1 and a remainder of 62.
Record the quotient 1 as the next digit in the result. 
Result so far: 108053.294871
Subtracting 78 from 140 leaves us with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Going ahead to step 14:
620 divided by 78 is 7 with a remainder of 74.
Write down 7 as next digit of the result. 
Result so far: 108053.2948717
If we take 546 away from 620, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 15:
740 divided by 78 is 9 with a remainder of 38.
The number 9 becomes the next digit in our result. 
Result so far: 108053.29487179
If we take 702 away from 740, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

In conclusion, the division gives 108053.29487179 with a balance of 3.8e-08.