We look at the division of 66538858 by 283 
The aim is to understand the frequency of 283 in 66538858.

Step 1:
283 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 283

On to step 2:
When dividing 66 by 283, we get 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Take the next digit (5) from the dividend and append it to 66, then repeat: 665 / 283

On to step 3:
When dividing 665 by 283, we get 2 with a remainder of 99.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 99 after subtracting 566 from 665.
Fetch the next digit (3) from the dividend, attach it to 99 and continue: 993 / 283

Step 4:
283 goes into 993 3 times with a remainder of 144.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
If we subtract 849 from 993, we get 144.
Grab the next digit (8) from the dividend, add it to 144, then carry on: 1448 / 283

Going ahead to step 5:
The number 283 fits into 1448 5 times, leaving a remainder of 33.
The next digit of our result is 5. 
Result so far: 235.0
If we take 1415 away from 1448, we end up with 33.
Take the next digit (8) from the dividend and append it to 33, then repeat: 338 / 283

On to step 6:
283 goes into 338 1 times with a remainder of 55.
Put 1 as the next digit of the answer. 
Result so far: 2351.0
If we take 283 away from 338, we end up with 55.
Bring next digit (5) of the dividend behind the 55 and repeat the process: 555 / 283

Going ahead to step 7:
When dividing 555 by 283, we get 1 with a remainder of 272.
Put 1 as the next digit of the answer. 
Result so far: 23511.0
The remainder is 272 after subtracting 283 from 555.
Include the next digit (8) from the dividend after 272, then repeat: 2728 / 283

Advancing to step 8:
283 goes into 2728 9 times with a remainder of 181.
Put 9 as the next digit of the answer. 
Result so far: 235119.0
The remainder is 181 after subtracting 2547 from 2728.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Advancing to step 9:
The number 283 fits into 1810 6 times, leaving a remainder of 112.
The next digit of our result is 6. 
Result so far: 235119.6
If we take 1698 away from 1810, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 10:
When dividing 1120 by 283, we get 3 with a remainder of 271.
Put 3 as the next digit of the answer. 
Result so far: 235119.63
Subtract 849 from 1120 to get 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Advancing to step 11:
If we divide 2710 by 283, we get 9 and a remainder of 163.
Put 9 as the next digit of the answer. 
Result so far: 235119.639
Subtracting 2547 from 2710 leaves us 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.

Going ahead to step 12:
283 goes into 1630 5 times with a remainder of 215.
The next digit of our result is 5. 
Result so far: 235119.6395
Subtracting 1415 from 1630 leaves us with 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 13:
283 goes into 2150 7 times with a remainder of 169.
Write down 7 as next digit of the result. 
Result so far: 235119.63957
Deduct 1981 from 2150 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Moving on to step 14:
283 can be fit into 1690 5 times, resulting in a remainder of 275.
Use 5 as the next digit of our solution. 
Result so far: 235119.639575
Subtracting 1415 from 1690 leaves us with 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Step 15:
283 goes into 2750 9 times with a remainder of 203.
Record the quotient 9 as the next digit in the result. 
Result so far: 235119.6395759
Subtracting 2547 from 2750 leaves us with 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:
When dividing 2030 by 283, we get 7 with a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 235119.63957597
Deduct 1981 from 2030 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

The final result is 235119.63957597 with a remainder of 4.9e-08.