Let's divide 4063951 by 678
The aim is to understand the frequency of 678 in 4063951.

Moving on to step 1:
678 goes into 4 0 times with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 678

Going ahead to step 2:
If we divide 40 by 678, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 40, we end up with 40.
Grab the next digit (6) from the dividend, add it to 40, then carry on: 406 / 678

Going ahead to step 3:
If we divide 406 by 678, we get 0 and a remainder of 406.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 406, we end up with 406.
Append the next digit (3) from the dividend to 406 and continue with: 4063 / 678

Advancing to step 4:
If we divide 4063 by 678, we get 5 and a remainder of 673.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 673 after subtracting 3390 from 4063.
Include the next digit (9) from the dividend after 673, then repeat: 6739 / 678

Step 5:
6739 divided by 678 is 9 with a remainder of 637.
The next digit of our result is 9. 
Result so far: 59.0
The remainder is 637 after subtracting 6102 from 6739.
Grab the next digit (5) from the dividend, add it to 637, then carry on: 6375 / 678

Moving on to step 6:
The number 678 fits into 6375 9 times, leaving a remainder of 273.
Write down 9 as next digit of the result. 
Result so far: 599.0
Subtract 6102 from 6375 to get 273.
Take the next digit (1) from the dividend and append it to 273, then repeat: 2731 / 678

Step 7:
The number 678 fits into 2731 4 times, leaving a remainder of 19.
Put 4 as the next digit of the answer. 
Result so far: 5994.0
The remainder is 19 after subtracting 2712 from 2731.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 8:
When dividing 190 by 678, we get 0 with a remainder of 190.
Record the quotient 0 as the next digit in the result. 
Result so far: 5994.0
If we take 0 away from 190, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 9:
678 can be fit into 1900 2 times, resulting in a remainder of 544.
Put 2 as the next digit of the answer. 
Result so far: 5994.02
Subtract 1356 from 1900 to get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Let's proceed to step 10:
678 can be fit into 5440 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 5994.028
Subtract 5424 from 5440 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
The number 678 fits into 160 0 times, leaving a remainder of 160.
Put 0 as the next digit of the answer. 
Result so far: 5994.028
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 12:
678 can be fit into 1600 2 times, resulting in a remainder of 244.
The next digit of our result is 2. 
Result so far: 5994.02802
Subtracting 1356 from 1600 leaves us with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Step 13:
2440 divided by 678 is 3 with a remainder of 406.
Use 3 as the next digit of our solution. 
Result so far: 5994.028023
Subtract 2034 from 2440 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Moving on to step 14:
The number 678 fits into 4060 5 times, leaving a remainder of 670.
Write down 5 as next digit of the result. 
Result so far: 5994.0280235
If we subtract 3390 from 4060, we get 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6700, and continue the process.

Going ahead to step 15:
6700 divided by 678 is 9 with a remainder of 598.
Write down 9 as next digit of the result. 
Result so far: 5994.02802359
Deduct 6102 from 6700 and we're left with 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

The final result is 5994.02802359 with a remainder of 5.98e-07.