90722401 divided by 543 
The aim is to understand the frequency of 543 in 90722401.

Going ahead to step 1:
If we divide 9 by 543, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 543

Let's proceed to step 2:
The number 543 fits into 90 0 times, leaving a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Bring next digit (7) of the dividend behind the 90 and repeat the process: 907 / 543

Going ahead to step 3:
907 divided by 543 is 1 with a remainder of 364.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 543 from 907, we get 364.
Fetch the next digit (2) from the dividend, attach it to 364 and continue: 3642 / 543

Advancing to step 4:
543 goes into 3642 6 times with a remainder of 384.
Write down 6 as next digit of the result. 
Result so far: 16.0
If we subtract 3258 from 3642, we get 384.
Take the next digit (2) from the dividend and append it to 384, then repeat: 3842 / 543

Step 5:
When dividing 3842 by 543, we get 7 with a remainder of 41.
The number 7 becomes the next digit in our result. 
Result so far: 167.0
Subtracting 3801 from 3842 leaves us with 41.
Include the next digit (4) from the dividend after 41, then repeat: 414 / 543

Going ahead to step 6:
If we divide 414 by 543, we get 0 and a remainder of 414.
The next digit of our result is 0. 
Result so far: 1670.0
The remainder is 414 after subtracting 0 from 414.
Include the next digit (0) from the dividend after 414, then repeat: 4140 / 543

Step 7:
543 goes into 4140 7 times with a remainder of 339.
Record the quotient 7 as the next digit in the result. 
Result so far: 16707.0
If we take 3801 away from 4140, we end up with 339.
Take the next digit (1) from the dividend and append it to 339, then repeat: 3391 / 543

Moving on to step 8:
543 can be fit into 3391 6 times, resulting in a remainder of 133.
Record the quotient 6 as the next digit in the result. 
Result so far: 167076.0
Subtracting 3258 from 3391 leaves us with 133.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

Going ahead to step 9:
When dividing 1330 by 543, we get 2 with a remainder of 244.
Put 2 as the next digit of the answer. 
Result so far: 167076.2
If we subtract 1086 from 1330, we get 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

On to step 10:
When dividing 2440 by 543, we get 4 with a remainder of 268.
Record the quotient 4 as the next digit in the result. 
Result so far: 167076.24
Deduct 2172 from 2440 and we're left 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.

Moving on to step 11:
When dividing 2680 by 543, we get 4 with a remainder of 508.
Write down 4 as next digit of the result. 
Result so far: 167076.244
If we take 2172 away from 2680, we end up with 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

The final outcome is 167076.244, with a leftover of 0.0508.