70591877 divided by 543 
The aim is to understand the frequency of 543 in 70591877.

Going ahead to step 1:
If we divide 7 by 543, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 543

Moving on to step 2:
The number 543 fits into 70 0 times, leaving a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Append the next digit (5) from the dividend to 70 and continue with: 705 / 543

Going ahead to step 3:
543 goes into 705 1 times with a remainder of 162.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 543 from 705 to get 162.
Append the next digit (9) from the dividend to 162 and continue with: 1629 / 543

Moving on to step 4:
The number 543 fits into 1629 3 times, leaving a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtracting 1629 from 1629 leaves us with 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 543

On to step 5:
If we divide 1 by 543, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 130.0
The remainder is 1 after subtracting 0 from 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 543

On to step 6:
When dividing 18 by 543, we get 0 with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 1300.0
Subtract 0 from 18 to get 18.
Bring next digit (7) of the dividend behind the 18 and repeat the process: 187 / 543

Going ahead to step 7:
543 can be fit into 187 0 times, resulting in a remainder of 187.
The next digit of our result is 0. 
Result so far: 13000.0
If we subtract 0 from 187, we get 187.
Append the next digit (7) from the dividend to 187 and continue with: 1877 / 543

Moving on to step 8:
1877 divided by 543 is 3 with a remainder of 248.
The next digit of our result is 3. 
Result so far: 130003.0
If we take 1629 away from 1877, we end up with 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

Step 9:
If we divide 2480 by 543, we get 4 and a remainder of 308.
Use 4 as the next digit of our solution. 
Result so far: 130003.4
Subtract 2172 from 2480 to get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Moving on to step 10:
3080 divided by 543 is 5 with a remainder of 365.
Record the quotient 5 as the next digit in the result. 
Result so far: 130003.45
If we subtract 2715 from 3080, we get 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Moving on to step 11:
The number 543 fits into 3650 6 times, leaving a remainder of 392.
The next digit of our result is 6. 
Result so far: 130003.456
Deduct 3258 from 3650 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:
When dividing 3920 by 543, we get 7 with a remainder of 119.
The number 7 becomes the next digit in our result. 
Result so far: 130003.4567
Subtracting 3801 from 3920 leaves us with 119.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1190, and continue the process.

Step 13:
1190 divided by 543 is 2 with a remainder of 104.
Use 2 as the next digit of our solution. 
Result so far: 130003.45672
The remainder is 104 after subtracting 1086 from 1190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 14:
543 goes into 1040 1 times with a remainder of 497.
The next digit of our result is 1. 
Result so far: 130003.456721
If we subtract 543 from 1040, we get 497.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4970, and continue the process.

On to step 15:
If we divide 4970 by 543, we get 9 and a remainder of 83.
Put 9 as the next digit of the answer. 
Result so far: 130003.4567219
Subtracting 4887 from 4970 leaves us with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

Going ahead to step 16:
543 can be fit into 830 1 times, resulting in a remainder of 287.
Record the quotient 1 as the next digit in the result. 
Result so far: 130003.45672191
If we take 543 away from 830, we end up with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

The final result is 130003.45672191 with a remainder of 2.87e-07.