Let's divide 43004634 by 987
The aim is to understand the frequency of 987 in 43004634.

On to step 1:
When dividing 4 by 987, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 987

Moving on to step 2:
The number 987 fits into 43 0 times, leaving a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Grab the next digit (0) from the dividend, add it to 43, then carry on: 430 / 987

Let's proceed to step 3:
987 can be fit into 430 0 times, resulting in a remainder of 430.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 430 after subtracting 0 from 430.
Take the next digit (0) from the dividend and append it to 430, then repeat: 4300 / 987

Step 4:
4300 divided by 987 is 4 with a remainder of 352.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 3948 from 4300 to get 352.
Include the next digit (4) from the dividend after 352, then repeat: 3524 / 987

Step 5:
3524 divided by 987 is 3 with a remainder of 563.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
If we take 2961 away from 3524, we end up with 563.
Fetch the next digit (6) from the dividend, attach it to 563 and continue: 5636 / 987

Advancing to step 6:
If we divide 5636 by 987, we get 5 and a remainder of 701.
Write down 5 as next digit of the result. 
Result so far: 435.0
The remainder is 701 after subtracting 4935 from 5636.
Bring next digit (3) of the dividend behind the 701 and repeat the process: 7013 / 987

Going ahead to step 7:
When dividing 7013 by 987, we get 7 with a remainder of 104.
The number 7 becomes the next digit in our result. 
Result so far: 4357.0
The remainder is 104 after subtracting 6909 from 7013.
Append the next digit (4) from the dividend to 104 and continue with: 1044 / 987

Let's proceed to step 8:
987 goes into 1044 1 times with a remainder of 57.
The number 1 becomes the next digit in our result. 
Result so far: 43571.0
Subtracting 987 from 1044 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 9:
987 can be fit into 570 0 times, resulting in a remainder of 570.
Put 0 as the next digit of the answer. 
Result so far: 43571.0
Subtract 0 from 570 to get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 10:
987 can be fit into 5700 5 times, resulting in a remainder of 765.
Put 5 as the next digit of the answer. 
Result so far: 43571.05
If we subtract 4935 from 5700, we get 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

Step 11:
987 goes into 7650 7 times with a remainder of 741.
Write down 7 as next digit of the result. 
Result so far: 43571.057
If we subtract 6909 from 7650, we get 741.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7410, and continue the process.

Going ahead to step 12:
987 goes into 7410 7 times with a remainder of 501.
Put 7 as the next digit of the answer. 
Result so far: 43571.0577
If we take 6909 away from 7410, we end up with 501.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

The final outcome is 43571.0577, with a leftover of 0.00501.