43920729 ÷ 396 
The aim is to understand the frequency of 396 in 43920729.

Going ahead to step 1:
4 divided by 396 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 396

Step 2:
396 can be fit into 43 0 times, resulting in a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 396

Let's proceed to step 3:
When dividing 439 by 396, we get 1 with a remainder of 43.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 396 from 439 and we're left with 43.
Bring next digit (2) of the dividend behind the 43 and repeat the process: 432 / 396

Step 4:
432 divided by 396 is 1 with a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 396 from 432 leaves us with 36.
Grab the next digit (0) from the dividend, add it to 36, then carry on: 360 / 396

On to step 5:
When dividing 360 by 396, we get 0 with a remainder of 360.
Record the quotient 0 as the next digit in the result. 
Result so far: 110.0
Deduct 0 from 360 and we're left with 360.
Fetch the next digit (7) from the dividend, attach it to 360 and continue: 3607 / 396

Advancing to step 6:
3607 divided by 396 is 9 with a remainder of 43.
The next digit of our result is 9. 
Result so far: 1109.0
The remainder is 43 after subtracting 3564 from 3607.
Bring next digit (2) of the dividend behind the 43 and repeat the process: 432 / 396

Step 7:
When dividing 432 by 396, we get 1 with a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 11091.0
Deduct 396 from 432 and we're left with 36.
Include the next digit (9) from the dividend after 36, then repeat: 369 / 396

Going ahead to step 8:
369 divided by 396 is 0 with a remainder of 369.
Write down 0 as next digit of the result. 
Result so far: 110910.0
Subtracting 0 from 369 leaves us with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Advancing to step 9:
The number 396 fits into 3690 9 times, leaving a remainder of 126.
The next digit of our result is 9. 
Result so far: 110910.9
If we subtract 3564 from 3690, we get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 10:
396 can be fit into 1260 3 times, resulting in a remainder of 72.
Record the quotient 3 as the next digit in the result. 
Result so far: 110910.93
The remainder is 72 after subtracting 1188 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 11:
If we divide 720 by 396, we get 1 and a remainder of 324.
Record the quotient 1 as the next digit in the result. 
Result so far: 110910.931
Subtract 396 from 720 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Advancing to step 12:
396 can be fit into 3240 8 times, resulting in a remainder of 72.
Put 8 as the next digit of the answer. 
Result so far: 110910.9318
Subtracting 3168 from 3240 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 13:
When dividing 720 by 396, we get 1 with a remainder of 324.
Write down 1 as next digit of the result. 
Result so far: 110910.93181
The remainder is 324 after subtracting 396 from 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

On to step 14:
If we divide 3240 by 396, we get 8 and a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 110910.931818
If we take 3168 away from 3240, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 15:
When dividing 720 by 396, we get 1 with a remainder of 324.
The next digit of our result is 1. 
Result so far: 110910.9318181
Deduct 396 from 720 and we're left with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Step 16:
If we divide 3240 by 396, we get 8 and a remainder of 72.
Write down 8 as next digit of the result. 
Result so far: 110910.93181818
Subtract 3168 from 3240 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

The final result is 110910.93181818 with a remainder of 7.2e-08.