43666573 ÷ 570 
The aim is to understand the frequency of 570 in 43666573.

Step 1:
570 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 570

Going ahead to step 2:
570 goes into 43 0 times with a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 43, we get 43.
Append the next digit (6) from the dividend to 43 and continue with: 436 / 570

Advancing to step 3:
436 divided by 570 is 0 with a remainder of 436.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 436 leaves us with 436.
Append the next digit (6) from the dividend to 436 and continue with: 4366 / 570

On to step 4:
4366 divided by 570 is 7 with a remainder of 376.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 3990 away from 4366, we end up with 376.
Take the next digit (6) from the dividend and append it to 376, then repeat: 3766 / 570

Going ahead to step 5:
570 goes into 3766 6 times with a remainder of 346.
Put 6 as the next digit of the answer. 
Result so far: 76.0
The remainder is 346 after subtracting 3420 from 3766.
Include the next digit (5) from the dividend after 346, then repeat: 3465 / 570

On to step 6:
570 can be fit into 3465 6 times, resulting in a remainder of 45.
The next digit of our result is 6. 
Result so far: 766.0
If we subtract 3420 from 3465, we get 45.
Fetch the next digit (7) from the dividend, attach it to 45 and continue: 457 / 570

Advancing to step 7:
When dividing 457 by 570, we get 0 with a remainder of 457.
Put 0 as the next digit of the answer. 
Result so far: 7660.0
Subtracting 0 from 457 leaves us with 457.
Append the next digit (3) from the dividend to 457 and continue with: 4573 / 570

Going ahead to step 8:
When dividing 4573 by 570, we get 8 with a remainder of 13.
Use 8 as the next digit of our solution. 
Result so far: 76608.0
If we take 4560 away from 4573, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 9:
130 divided by 570 is 0 with a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 76608.0
If we subtract 0 from 130, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 10:
1300 divided by 570 is 2 with a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 76608.02
Deduct 1140 from 1300 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 11:
570 goes into 1600 2 times with a remainder of 460.
Put 2 as the next digit of the answer. 
Result so far: 76608.022
If we subtract 1140 from 1600, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

After the division, we end up with 76608.022 and a remainder of 0.046.