We're dividing 78243818 by 487 
The aim is to understand the frequency of 487 in 78243818.

Step 1:
If we divide 7 by 487, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 487

Let's proceed to step 2:
When dividing 78 by 487, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Bring next digit (2) of the dividend behind the 78 and repeat the process: 782 / 487

Step 3:
487 goes into 782 1 times with a remainder of 295.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 487 away from 782, we end up with 295.
Bring next digit (4) of the dividend behind the 295 and repeat the process: 2954 / 487

Moving on to step 4:
If we divide 2954 by 487, we get 6 and a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 16.0
Subtracting 2922 from 2954 leaves us with 32.
Fetch the next digit (3) from the dividend, attach it to 32 and continue: 323 / 487

Advancing to step 5:
487 goes into 323 0 times with a remainder of 323.
Put 0 as the next digit of the answer. 
Result so far: 160.0
Subtracting 0 from 323 leaves us with 323.
Append the next digit (8) from the dividend to 323 and continue with: 3238 / 487

Advancing to step 6:
487 goes into 3238 6 times with a remainder of 316.
Use 6 as the next digit of our solution. 
Result so far: 1606.0
If we subtract 2922 from 3238, we get 316.
Fetch the next digit (1) from the dividend, attach it to 316 and continue: 3161 / 487

Moving on to step 7:
The number 487 fits into 3161 6 times, leaving a remainder of 239.
The number 6 becomes the next digit in our result. 
Result so far: 16066.0
Subtract 2922 from 3161 to get 239.
Append the next digit (8) from the dividend to 239 and continue with: 2398 / 487

Advancing to step 8:
2398 divided by 487 is 4 with a remainder of 450.
Put 4 as the next digit of the answer. 
Result so far: 160664.0
If we subtract 1948 from 2398, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

On to step 9:
4500 divided by 487 is 9 with a remainder of 117.
Put 9 as the next digit of the answer. 
Result so far: 160664.9
The remainder is 117 after subtracting 4383 from 4500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Step 10:
487 can be fit into 1170 2 times, resulting in a remainder of 196.
Record the quotient 2 as the next digit in the result. 
Result so far: 160664.92
Subtracting 974 from 1170 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 11:
If we divide 1960 by 487, we get 4 and a remainder of 12.
The next digit of our result is 4. 
Result so far: 160664.924
If we subtract 1948 from 1960, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 12:
When dividing 120 by 487, we get 0 with a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 160664.924
Subtract 0 from 120 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 13:
487 goes into 1200 2 times with a remainder of 226.
Use 2 as the next digit of our solution. 
Result so far: 160664.92402
If we take 974 away from 1200, we end up with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 14:
487 goes into 2260 4 times with a remainder of 312.
Write down 4 as next digit of the result. 
Result so far: 160664.924024
Deduct 1948 from 2260 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Step 15:
487 goes into 3120 6 times with a remainder of 198.
Record the quotient 6 as the next digit in the result. 
Result so far: 160664.9240246
Subtract 2922 from 3120 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Advancing to step 16:
If we divide 1980 by 487, we get 4 and a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 160664.92402464
The remainder is 32 after subtracting 1948 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Our division results in 160664.92402464 with a remaining 3.2e-08.