We're dividing 545900 by 78 
The aim is to understand the frequency of 78 in 545900.

Let's proceed to step 1:
The number 78 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 78

Let's proceed to step 2:
54 divided by 78 is 0 with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Bring next digit (5) of the dividend behind the 54 and repeat the process: 545 / 78

Let's proceed to step 3:
545 divided by 78 is 6 with a remainder of 77.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 77 after subtracting 468 from 545.
Grab the next digit (9) from the dividend, add it to 77, then carry on: 779 / 78

Step 4:
If we divide 779 by 78, we get 9 and a remainder of 77.
Write down 9 as next digit of the result. 
Result so far: 69.0
Deduct 702 from 779 and we're left with 77.
Grab the next digit (0) from the dividend, add it to 77, then carry on: 770 / 78

Moving on to step 5:
If we divide 770 by 78, we get 9 and a remainder of 68.
Put 9 as the next digit of the answer. 
Result so far: 699.0
Deduct 702 from 770 and we're left with 68.
Fetch the next digit (0) from the dividend, attach it to 68 and continue: 680 / 78

Going ahead to step 6:
If we divide 680 by 78, we get 8 and a remainder of 56.
The number 8 becomes the next digit in our result. 
Result so far: 6998.0
If we take 624 away from 680, we end up 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.

Moving on to step 7:
78 can be fit into 560 7 times, resulting in a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 6998.7
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 8:
78 can be fit into 140 1 times, resulting in a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 6998.71
Deduct 78 from 140 and we're left 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.

On to step 9:
78 goes into 620 7 times with a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 6998.717
Subtract 546 from 620 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.

Let's proceed to step 10:
The number 78 fits into 740 9 times, leaving a remainder of 38.
Put 9 as the next digit of the answer. 
Result so far: 6998.7179
The remainder is 38 after subtracting 702 from 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 11:
The number 78 fits into 380 4 times, leaving a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 6998.71794
The remainder is 68 after subtracting 312 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 12:
When dividing 680 by 78, we get 8 with a remainder of 56.
The next digit of our result is 8. 
Result so far: 6998.717948
Deduct 624 from 680 and we're left 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.

On to step 13:
560 divided by 78 is 7 with a remainder of 14.
The next digit of our result is 7. 
Result so far: 6998.7179487
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 14:
78 can be fit into 140 1 times, resulting in a remainder of 62.
The next digit of our result is 1. 
Result so far: 6998.71794871
The remainder is 62 after subtracting 78 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The final outcome is 6998.71794871, with a leftover of 6.2e-08.