We look at the division of 40639102 by 286 
The aim is to understand the frequency of 286 in 40639102.

Going ahead to step 1:
The number 286 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (0) from the dividend after 4, then repeat: 40 / 286

Step 2:
When dividing 40 by 286, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 40 and we're left with 40.
Include the next digit (6) from the dividend after 40, then repeat: 406 / 286

On to step 3:
286 can be fit into 406 1 times, resulting in a remainder of 120.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 120 after subtracting 286 from 406.
Take the next digit (3) from the dividend and append it to 120, then repeat: 1203 / 286

Advancing to step 4:
When dividing 1203 by 286, we get 4 with a remainder of 59.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 1144 from 1203 and we're left with 59.
Take the next digit (9) from the dividend and append it to 59, then repeat: 599 / 286

On to step 5:
When dividing 599 by 286, we get 2 with a remainder of 27.
Record the quotient 2 as the next digit in the result. 
Result so far: 142.0
If we take 572 away from 599, we end up with 27.
Grab the next digit (1) from the dividend, add it to 27, then carry on: 271 / 286

Advancing to step 6:
286 can be fit into 271 0 times, resulting in a remainder of 271.
Put 0 as the next digit of the answer. 
Result so far: 1420.0
Subtracting 0 from 271 leaves us with 271.
Include the next digit (0) from the dividend after 271, then repeat: 2710 / 286

Advancing to step 7:
286 can be fit into 2710 9 times, resulting in a remainder of 136.
The next digit of our result is 9. 
Result so far: 14209.0
Subtracting 2574 from 2710 leaves us with 136.
Grab the next digit (2) from the dividend, add it to 136, then carry on: 1362 / 286

Moving on to step 8:
1362 divided by 286 is 4 with a remainder of 218.
Write down 4 as next digit of the result. 
Result so far: 142094.0
Deduct 1144 from 1362 and we're left with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Advancing to step 9:
286 goes into 2180 7 times with a remainder of 178.
Use 7 as the next digit of our solution. 
Result so far: 142094.7
Deduct 2002 from 2180 and we're left with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Advancing to step 10:
The number 286 fits into 1780 6 times, leaving a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 142094.76
If we take 1716 away from 1780, we end up 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.

Step 11:
The number 286 fits into 640 2 times, leaving a remainder of 68.
The next digit of our result is 2. 
Result so far: 142094.762
The remainder is 68 after subtracting 572 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 12:
When dividing 680 by 286, we get 2 with a remainder of 108.
The number 2 becomes the next digit in our result. 
Result so far: 142094.7622
If we take 572 away from 680, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

After the division, we end up with 142094.7622 and a remainder of 0.00108.