Let's divide 65386321 by 987
The aim is to understand the frequency of 987 in 65386321.

Moving on to step 1:
6 divided by 987 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 987

Let's proceed to step 2:
65 divided by 987 is 0 with a remainder of 65.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 65 and we're left with 65.
Include the next digit (3) from the dividend after 65, then repeat: 653 / 987

Let's proceed to step 3:
When dividing 653 by 987, we get 0 with a remainder of 653.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 653 after subtracting 0 from 653.
Include the next digit (8) from the dividend after 653, then repeat: 6538 / 987

Let's proceed to step 4:
987 can be fit into 6538 6 times, resulting in a remainder of 616.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 616 after subtracting 5922 from 6538.
Append the next digit (6) from the dividend to 616 and continue with: 6166 / 987

Let's proceed to step 5:
When dividing 6166 by 987, we get 6 with a remainder of 244.
Write down 6 as next digit of the result. 
Result so far: 66.0
If we take 5922 away from 6166, we end up with 244.
Grab the next digit (3) from the dividend, add it to 244, then carry on: 2443 / 987

Moving on to step 6:
987 can be fit into 2443 2 times, resulting in a remainder of 469.
Use 2 as the next digit of our solution. 
Result so far: 662.0
Subtract 1974 from 2443 to get 469.
Take the next digit (2) from the dividend and append it to 469, then repeat: 4692 / 987

Going ahead to step 7:
The number 987 fits into 4692 4 times, leaving a remainder of 744.
Record the quotient 4 as the next digit in the result. 
Result so far: 6624.0
If we take 3948 away from 4692, we end up with 744.
Include the next digit (1) from the dividend after 744, then repeat: 7441 / 987

Advancing to step 8:
If we divide 7441 by 987, we get 7 and a remainder of 532.
Record the quotient 7 as the next digit in the result. 
Result so far: 66247.0
Deduct 6909 from 7441 and we're left with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 9:
5320 divided by 987 is 5 with a remainder of 385.
The next digit of our result is 5. 
Result so far: 66247.5
Subtract 4935 from 5320 to get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Going ahead to step 10:
987 can be fit into 3850 3 times, resulting in a remainder of 889.
The next digit of our result is 3. 
Result so far: 66247.53
Deduct 2961 from 3850 and we're left with 889.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8890, and continue the process.

Advancing to step 11:
987 can be fit into 8890 9 times, resulting in a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 66247.539
Subtract 8883 from 8890 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 12:
987 can be fit into 70 0 times, resulting in a remainder of 70.
Put 0 as the next digit of the answer. 
Result so far: 66247.539
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 13:
700 divided by 987 is 0 with a remainder of 700.
Record the quotient 0 as the next digit in the result. 
Result so far: 66247.539
The remainder is 700 after subtracting 0 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7000, and continue the process.

The final result is 66247.539 with a remainder of 0.0007.