We're dividing 78294880 by 873 
The aim is to understand the frequency of 873 in 78294880.

Going ahead to step 1:
7 divided by 873 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 873

Step 2:
The number 873 fits into 78 0 times, leaving a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Include the next digit (2) from the dividend after 78, then repeat: 782 / 873

Advancing to step 3:
873 goes into 782 0 times with a remainder of 782.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 782, we end up with 782.
Grab the next digit (9) from the dividend, add it to 782, then carry on: 7829 / 873

Advancing to step 4:
The number 873 fits into 7829 8 times, leaving a remainder of 845.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 6984 from 7829 and we're left with 845.
Grab the next digit (4) from the dividend, add it to 845, then carry on: 8454 / 873

Let's proceed to step 5:
873 goes into 8454 9 times with a remainder of 597.
The next digit of our result is 9. 
Result so far: 89.0
Deduct 7857 from 8454 and we're left with 597.
Fetch the next digit (8) from the dividend, attach it to 597 and continue: 5978 / 873

Going ahead to step 6:
873 can be fit into 5978 6 times, resulting in a remainder of 740.
Record the quotient 6 as the next digit in the result. 
Result so far: 896.0
If we take 5238 away from 5978, we end up with 740.
Take the next digit (8) from the dividend and append it to 740, then repeat: 7408 / 873

Advancing to step 7:
7408 divided by 873 is 8 with a remainder of 424.
The next digit of our result is 8. 
Result so far: 8968.0
Subtracting 6984 from 7408 leaves us with 424.
Fetch the next digit (0) from the dividend, attach it to 424 and continue: 4240 / 873

Moving on to step 8:
If we divide 4240 by 873, we get 4 and a remainder of 748.
The number 4 becomes the next digit in our result. 
Result so far: 89684.0
The remainder is 748 after subtracting 3492 from 4240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7480, and continue the process.

On to step 9:
7480 divided by 873 is 8 with a remainder of 496.
Write down 8 as next digit of the result. 
Result so far: 89684.8
Deduct 6984 from 7480 and we're left with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

On to step 10:
The number 873 fits into 4960 5 times, leaving a remainder of 595.
Write down 5 as next digit of the result. 
Result so far: 89684.85
If we take 4365 away from 4960, we end up with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Advancing to step 11:
If we divide 5950 by 873, we get 6 and a remainder of 712.
Use 6 as the next digit of our solution. 
Result so far: 89684.856
The remainder is 712 after subtracting 5238 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

On to step 12:
7120 divided by 873 is 8 with a remainder of 136.
Record the quotient 8 as the next digit in the result. 
Result so far: 89684.8568
Subtracting 6984 from 7120 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Advancing to step 13:
873 can be fit into 1360 1 times, resulting in a remainder of 487.
Write down 1 as next digit of the result. 
Result so far: 89684.85681
If we subtract 873 from 1360, we get 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

Moving on to step 14:
873 goes into 4870 5 times with a remainder of 505.
Write down 5 as next digit of the result. 
Result so far: 89684.856815
Subtract 4365 from 4870 to get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

On to step 15:
5050 divided by 873 is 5 with a remainder of 685.
The number 5 becomes the next digit in our result. 
Result so far: 89684.8568155
If we subtract 4365 from 5050, we get 685.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6850, and continue the process.

Our division results in 89684.8568155 with a remaining 6.85e-06.