90742568 divided by 531 
The aim is to understand the frequency of 531 in 90742568.

Going ahead to step 1:
9 divided by 531 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 531

Moving on to step 2:
When dividing 90 by 531, we get 0 with a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Grab the next digit (7) from the dividend, add it to 90, then carry on: 907 / 531

Going ahead to step 3:
531 can be fit into 907 1 times, resulting in a remainder of 376.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 376 after subtracting 531 from 907.
Grab the next digit (4) from the dividend, add it to 376, then carry on: 3764 / 531

Advancing to step 4:
531 can be fit into 3764 7 times, resulting in a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 17.0
If we subtract 3717 from 3764, we get 47.
Grab the next digit (2) from the dividend, add it to 47, then carry on: 472 / 531

Let's proceed to step 5:
The number 531 fits into 472 0 times, leaving a remainder of 472.
The next digit of our result is 0. 
Result so far: 170.0
If we subtract 0 from 472, we get 472.
Grab the next digit (5) from the dividend, add it to 472, then carry on: 4725 / 531

Going ahead to step 6:
531 goes into 4725 8 times with a remainder of 477.
Put 8 as the next digit of the answer. 
Result so far: 1708.0
Subtract 4248 from 4725 to get 477.
Fetch the next digit (6) from the dividend, attach it to 477 and continue: 4776 / 531

Going ahead to step 7:
531 can be fit into 4776 8 times, resulting in a remainder of 528.
The number 8 becomes the next digit in our result. 
Result so far: 17088.0
Subtracting 4248 from 4776 leaves us with 528.
Append the next digit (8) from the dividend to 528 and continue with: 5288 / 531

Going ahead to step 8:
The number 531 fits into 5288 9 times, leaving a remainder of 509.
Record the quotient 9 as the next digit in the result. 
Result so far: 170889.0
The remainder is 509 after subtracting 4779 from 5288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5090, and continue the process.

On to step 9:
The number 531 fits into 5090 9 times, leaving a remainder of 311.
The number 9 becomes the next digit in our result. 
Result so far: 170889.9
Subtract 4779 from 5090 to get 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

On to step 10:
3110 divided by 531 is 5 with a remainder of 455.
Record the quotient 5 as the next digit in the result. 
Result so far: 170889.95
If we take 2655 away from 3110, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Advancing to step 11:
531 can be fit into 4550 8 times, resulting in a remainder of 302.
Put 8 as the next digit of the answer. 
Result so far: 170889.958
Deduct 4248 from 4550 and we're left with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Advancing to step 12:
The number 531 fits into 3020 5 times, leaving a remainder of 365.
The number 5 becomes the next digit in our result. 
Result so far: 170889.9585
If we take 2655 away from 3020, we end up with 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 13:
531 goes into 3650 6 times with a remainder of 464.
Put 6 as the next digit of the answer. 
Result so far: 170889.95856
If we subtract 3186 from 3650, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

On to step 14:
531 goes into 4640 8 times with a remainder of 392.
Record the quotient 8 as the next digit in the result. 
Result so far: 170889.958568
If we take 4248 away from 4640, we end up 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.

On to step 15:
The number 531 fits into 3920 7 times, leaving a remainder of 203.
The number 7 becomes the next digit in our result. 
Result so far: 170889.9585687
If we subtract 3717 from 3920, we get 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Advancing to step 16:
531 can be fit into 2030 3 times, resulting in a remainder of 437.
Write down 3 as next digit of the result. 
Result so far: 170889.95856873
Subtract 1593 from 2030 to get 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Our division results in 170889.95856873 with a remaining 4.37e-07.