We look at the division of 37991133 by 436 
The aim is to understand the frequency of 436 in 37991133.

Let's proceed to step 1:
The number 436 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 436

Let's proceed to step 2:
436 goes into 37 0 times with a remainder of 37.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 37, we get 37.
Append the next digit (9) from the dividend to 37 and continue with: 379 / 436

Going ahead to step 3:
379 divided by 436 is 0 with a remainder of 379.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 379 to get 379.
Grab the next digit (9) from the dividend, add it to 379, then carry on: 3799 / 436

Going ahead to step 4:
436 can be fit into 3799 8 times, resulting in a remainder of 311.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 3488 from 3799 leaves us with 311.
Take the next digit (1) from the dividend and append it to 311, then repeat: 3111 / 436

On to step 5:
If we divide 3111 by 436, we get 7 and a remainder of 59.
Use 7 as the next digit of our solution. 
Result so far: 87.0
If we take 3052 away from 3111, we end up with 59.
Append the next digit (1) from the dividend to 59 and continue with: 591 / 436

Moving on to step 6:
The number 436 fits into 591 1 times, leaving a remainder of 155.
Write down 1 as next digit of the result. 
Result so far: 871.0
If we subtract 436 from 591, we get 155.
Grab the next digit (3) from the dividend, add it to 155, then carry on: 1553 / 436

Moving on to step 7:
The number 436 fits into 1553 3 times, leaving a remainder of 245.
Record the quotient 3 as the next digit in the result. 
Result so far: 8713.0
Deduct 1308 from 1553 and we're left with 245.
Include the next digit (3) from the dividend after 245, then repeat: 2453 / 436

Advancing to step 8:
The number 436 fits into 2453 5 times, leaving a remainder of 273.
The next digit of our result is 5. 
Result so far: 87135.0
Deduct 2180 from 2453 and we're left with 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

Let's proceed to step 9:
When dividing 2730 by 436, we get 6 with a remainder of 114.
Write down 6 as next digit of the result. 
Result so far: 87135.6
If we take 2616 away from 2730, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Going ahead to step 10:
When dividing 1140 by 436, we get 2 with a remainder of 268.
Put 2 as the next digit of the answer. 
Result so far: 87135.62
If we take 872 away from 1140, we end up with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 11:
If we divide 2680 by 436, we get 6 and a remainder of 64.
The next digit of our result is 6. 
Result so far: 87135.626
Subtract 2616 from 2680 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 12:
640 divided by 436 is 1 with a remainder of 204.
The number 1 becomes the next digit in our result. 
Result so far: 87135.6261
Subtracting 436 from 640 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Moving on to step 13:
436 goes into 2040 4 times with a remainder of 296.
The number 4 becomes the next digit in our result. 
Result so far: 87135.62614
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 14:
2960 divided by 436 is 6 with a remainder of 344.
Record the quotient 6 as the next digit in the result. 
Result so far: 87135.626146
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 15:
The number 436 fits into 3440 7 times, leaving a remainder of 388.
Use 7 as the next digit of our solution. 
Result so far: 87135.6261467
Subtract 3052 from 3440 to get 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 16:
3880 divided by 436 is 8 with a remainder of 392.
Put 8 as the next digit of the answer. 
Result so far: 87135.62614678
Subtracting 3488 from 3880 leaves us 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.

The final result is 87135.62614678 with a remainder of 3.92e-07.