We look at the division of 91502143 by 436 
The aim is to understand the frequency of 436 in 91502143.

Going ahead to step 1:
436 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 436

Moving on to step 2:
436 can be fit into 91 0 times, resulting in a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Append the next digit (5) from the dividend to 91 and continue with: 915 / 436

Going ahead to step 3:
When dividing 915 by 436, we get 2 with a remainder of 43.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 872 away from 915, we end up with 43.
Append the next digit (0) from the dividend to 43 and continue with: 430 / 436

Let's proceed to step 4:
If we divide 430 by 436, we get 0 and a remainder of 430.
Use 0 as the next digit of our solution. 
Result so far: 20.0
If we subtract 0 from 430, we get 430.
Append the next digit (2) from the dividend to 430 and continue with: 4302 / 436

Going ahead to step 5:
The number 436 fits into 4302 9 times, leaving a remainder of 378.
Record the quotient 9 as the next digit in the result. 
Result so far: 209.0
If we subtract 3924 from 4302, we get 378.
Bring next digit (1) of the dividend behind the 378 and repeat the process: 3781 / 436

Advancing to step 6:
When dividing 3781 by 436, we get 8 with a remainder of 293.
Write down 8 as next digit of the result. 
Result so far: 2098.0
If we subtract 3488 from 3781, we get 293.
Grab the next digit (4) from the dividend, add it to 293, then carry on: 2934 / 436

Moving on to step 7:
2934 divided by 436 is 6 with a remainder of 318.
The number 6 becomes the next digit in our result. 
Result so far: 20986.0
Deduct 2616 from 2934 and we're left with 318.
Grab the next digit (3) from the dividend, add it to 318, then carry on: 3183 / 436

Let's proceed to step 8:
The number 436 fits into 3183 7 times, leaving a remainder of 131.
The number 7 becomes the next digit in our result. 
Result so far: 209867.0
If we take 3052 away from 3183, we end up with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Moving on to step 9:
436 can be fit into 1310 3 times, resulting in a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 209867.3
The remainder is 2 after subtracting 1308 from 1310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
20 divided by 436 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 209867.3
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
When dividing 200 by 436, we get 0 with a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 209867.3
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 209867.3 with a remainder of 0.02.