We're dividing 3998324 by 436 
The aim is to understand the frequency of 436 in 3998324.

Step 1:
If we divide 3 by 436, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 436

Advancing to step 2:
39 divided by 436 is 0 with a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Include the next digit (9) from the dividend after 39, then repeat: 399 / 436

Let's proceed to step 3:
When dividing 399 by 436, we get 0 with a remainder of 399.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 399 to get 399.
Bring next digit (8) of the dividend behind the 399 and repeat the process: 3998 / 436

On to step 4:
436 goes into 3998 9 times with a remainder of 74.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we subtract 3924 from 3998, we get 74.
Grab the next digit (3) from the dividend, add it to 74, then carry on: 743 / 436

Step 5:
436 can be fit into 743 1 times, resulting in a remainder of 307.
The next digit of our result is 1. 
Result so far: 91.0
Subtracting 436 from 743 leaves us with 307.
Fetch the next digit (2) from the dividend, attach it to 307 and continue: 3072 / 436

Let's proceed to step 6:
If we divide 3072 by 436, we get 7 and a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 917.0
Subtracting 3052 from 3072 leaves us with 20.
Fetch the next digit (4) from the dividend, attach it to 20 and continue: 204 / 436

Moving on to step 7:
If we divide 204 by 436, we get 0 and a remainder of 204.
Use 0 as the next digit of our solution. 
Result so far: 9170.0
If we subtract 0 from 204, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 8:
436 goes into 2040 4 times with a remainder of 296.
Record the quotient 4 as the next digit in the result. 
Result so far: 9170.4
If we subtract 1744 from 2040, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 9:
When dividing 2960 by 436, we get 6 with a remainder of 344.
Record the quotient 6 as the next digit in the result. 
Result so far: 9170.46
Deduct 2616 from 2960 and we're left with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

Moving on to step 10:
When dividing 3440 by 436, we get 7 with a remainder of 388.
The number 7 becomes the next digit in our result. 
Result so far: 9170.467
Deduct 3052 from 3440 and we're left with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Let's proceed to step 11:
436 can be fit into 3880 8 times, resulting in a remainder of 392.
The next digit of our result is 8. 
Result so far: 9170.4678
Deduct 3488 from 3880 and we're left with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Moving on to step 12:
436 goes into 3920 8 times with a remainder of 432.
Put 8 as the next digit of the answer. 
Result so far: 9170.46788
The remainder is 432 after subtracting 3488 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

The quotient of the division is 9170.46788, and the remainder is 0.000432.