71800459 divided by 285 
The aim is to understand the frequency of 285 in 71800459.

Going ahead to step 1:
285 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 285

Moving on to step 2:
When dividing 71 by 285, we get 0 with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Fetch the next digit (8) from the dividend, attach it to 71 and continue: 718 / 285

Moving on to step 3:
If we divide 718 by 285, we get 2 and a remainder of 148.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we take 570 away from 718, we end up with 148.
Append the next digit (0) from the dividend to 148 and continue with: 1480 / 285

Let's proceed to step 4:
285 goes into 1480 5 times with a remainder of 55.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtracting 1425 from 1480 leaves us with 55.
Include the next digit (0) from the dividend after 55, then repeat: 550 / 285

Let's proceed to step 5:
If we divide 550 by 285, we get 1 and a remainder of 265.
Use 1 as the next digit of our solution. 
Result so far: 251.0
Subtracting 285 from 550 leaves us with 265.
Grab the next digit (4) from the dividend, add it to 265, then carry on: 2654 / 285

Moving on to step 6:
The number 285 fits into 2654 9 times, leaving a remainder of 89.
Use 9 as the next digit of our solution. 
Result so far: 2519.0
If we subtract 2565 from 2654, we get 89.
Grab the next digit (5) from the dividend, add it to 89, then carry on: 895 / 285

On to step 7:
If we divide 895 by 285, we get 3 and a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 25193.0
Subtracting 855 from 895 leaves us with 40.
Grab the next digit (9) from the dividend, add it to 40, then carry on: 409 / 285

Going ahead to step 8:
If we divide 409 by 285, we get 1 and a remainder of 124.
The number 1 becomes the next digit in our result. 
Result so far: 251931.0
Subtract 285 from 409 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Going ahead to step 9:
The number 285 fits into 1240 4 times, leaving a remainder of 100.
Record the quotient 4 as the next digit in the result. 
Result so far: 251931.4
Subtracting 1140 from 1240 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 10:
285 can be fit into 1000 3 times, resulting in a remainder of 145.
The next digit of our result is 3. 
Result so far: 251931.43
Subtract 855 from 1000 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 11:
The number 285 fits into 1450 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 251931.435
If we take 1425 away from 1450, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 12:
The number 285 fits into 250 0 times, leaving a remainder of 250.
Put 0 as the next digit of the answer. 
Result so far: 251931.435
The remainder is 250 after subtracting 0 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 13:
If we divide 2500 by 285, we get 8 and a remainder of 220.
Put 8 as the next digit of the answer. 
Result so far: 251931.43508
If we take 2280 away from 2500, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 14:
285 goes into 2200 7 times with a remainder of 205.
Record the quotient 7 as the next digit in the result. 
Result so far: 251931.435087
The remainder is 205 after subtracting 1995 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Advancing to step 15:
The number 285 fits into 2050 7 times, leaving a remainder of 55.
Use 7 as the next digit of our solution. 
Result so far: 251931.4350877
Subtracting 1995 from 2050 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

The final result is 251931.4350877 with a remainder of 5.5e-07.