We look at the division of 90919846 by 279 
The aim is to understand the frequency of 279 in 90919846.

On to step 1:
279 goes into 9 0 times with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 279

Going ahead to step 2:
90 divided by 279 is 0 with a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Fetch the next digit (9) from the dividend, attach it to 90 and continue: 909 / 279

Let's proceed to step 3:
909 divided by 279 is 3 with a remainder of 72.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 837 from 909 leaves us with 72.
Fetch the next digit (1) from the dividend, attach it to 72 and continue: 721 / 279

Going ahead to step 4:
When dividing 721 by 279, we get 2 with a remainder of 163.
Record the quotient 2 as the next digit in the result. 
Result so far: 32.0
If we subtract 558 from 721, we get 163.
Include the next digit (9) from the dividend after 163, then repeat: 1639 / 279

On to step 5:
The number 279 fits into 1639 5 times, leaving a remainder of 244.
The next digit of our result is 5. 
Result so far: 325.0
The remainder is 244 after subtracting 1395 from 1639.
Bring next digit (8) of the dividend behind the 244 and repeat the process: 2448 / 279

Advancing to step 6:
The number 279 fits into 2448 8 times, leaving a remainder of 216.
Put 8 as the next digit of the answer. 
Result so far: 3258.0
Subtracting 2232 from 2448 leaves us with 216.
Take the next digit (4) from the dividend and append it to 216, then repeat: 2164 / 279

Step 7:
The number 279 fits into 2164 7 times, leaving a remainder of 211.
Use 7 as the next digit of our solution. 
Result so far: 32587.0
Subtracting 1953 from 2164 leaves us with 211.
Grab the next digit (6) from the dividend, add it to 211, then carry on: 2116 / 279

Step 8:
If we divide 2116 by 279, we get 7 and a remainder of 163.
Put 7 as the next digit of the answer. 
Result so far: 325877.0
Deduct 1953 from 2116 and we're left with 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Moving on to step 9:
If we divide 1630 by 279, we get 5 and a remainder of 235.
Put 5 as the next digit of the answer. 
Result so far: 325877.5
Subtract 1395 from 1630 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 10:
The number 279 fits into 2350 8 times, leaving a remainder of 118.
Put 8 as the next digit of the answer. 
Result so far: 325877.58
If we take 2232 away from 2350, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 11:
1180 divided by 279 is 4 with a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 325877.584
Subtracting 1116 from 1180 leaves us with 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:
The number 279 fits into 640 2 times, leaving a remainder of 82.
The number 2 becomes the next digit in our result. 
Result so far: 325877.5842
Deduct 558 from 640 and we're left with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 13:
279 goes into 820 2 times with a remainder of 262.
Write down 2 as next digit of the result. 
Result so far: 325877.58422
Subtracting 558 from 820 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

The quotient of the division is 325877.58422, and the remainder is 0.000262.