Let's divide 43523074 by 663
The aim is to understand the frequency of 663 in 43523074.

Let's proceed to step 1:
If we divide 4 by 663, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 663

Step 2:
When dividing 43 by 663, we get 0 with a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Bring next digit (5) of the dividend behind the 43 and repeat the process: 435 / 663

Going ahead to step 3:
663 can be fit into 435 0 times, resulting in a remainder of 435.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 435 and we're left with 435.
Take the next digit (2) from the dividend and append it to 435, then repeat: 4352 / 663

Advancing to step 4:
663 can be fit into 4352 6 times, resulting in a remainder of 374.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtracting 3978 from 4352 leaves us with 374.
Take the next digit (3) from the dividend and append it to 374, then repeat: 3743 / 663

Step 5:
When dividing 3743 by 663, we get 5 with a remainder of 428.
Use 5 as the next digit of our solution. 
Result so far: 65.0
The remainder is 428 after subtracting 3315 from 3743.
Bring next digit (0) of the dividend behind the 428 and repeat the process: 4280 / 663

Advancing to step 6:
If we divide 4280 by 663, we get 6 and a remainder of 302.
Use 6 as the next digit of our solution. 
Result so far: 656.0
The remainder is 302 after subtracting 3978 from 4280.
Include the next digit (7) from the dividend after 302, then repeat: 3027 / 663

Let's proceed to step 7:
When dividing 3027 by 663, we get 4 with a remainder of 375.
Use 4 as the next digit of our solution. 
Result so far: 6564.0
Subtract 2652 from 3027 to get 375.
Include the next digit (4) from the dividend after 375, then repeat: 3754 / 663

Advancing to step 8:
If we divide 3754 by 663, we get 5 and a remainder of 439.
Put 5 as the next digit of the answer. 
Result so far: 65645.0
The remainder is 439 after subtracting 3315 from 3754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4390, and continue the process.

Let's proceed to step 9:
4390 divided by 663 is 6 with a remainder of 412.
The number 6 becomes the next digit in our result. 
Result so far: 65645.6
Deduct 3978 from 4390 and we're left with 412.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4120, and continue the process.

Moving on to step 10:
When dividing 4120 by 663, we get 6 with a remainder of 142.
Put 6 as the next digit of the answer. 
Result so far: 65645.66
If we subtract 3978 from 4120, we get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Our division results in 65645.66 with a remaining 0.142.