We look at the division of 42897030 by 808 
The aim is to understand the frequency of 808 in 42897030.

Let's proceed to step 1:
The number 808 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 808

Moving on to step 2:
When dividing 42 by 808, we get 0 with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Append the next digit (8) from the dividend to 42 and continue with: 428 / 808

Moving on to step 3:
If we divide 428 by 808, we get 0 and a remainder of 428.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 428 to get 428.
Append the next digit (9) from the dividend to 428 and continue with: 4289 / 808

Going ahead to step 4:
When dividing 4289 by 808, we get 5 with a remainder of 249.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 4040 from 4289, we get 249.
Append the next digit (7) from the dividend to 249 and continue with: 2497 / 808

Going ahead to step 5:
When dividing 2497 by 808, we get 3 with a remainder of 73.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtract 2424 from 2497 to get 73.
Fetch the next digit (0) from the dividend, attach it to 73 and continue: 730 / 808

Going ahead to step 6:
808 can be fit into 730 0 times, resulting in a remainder of 730.
Put 0 as the next digit of the answer. 
Result so far: 530.0
Subtract 0 from 730 to get 730.
Grab the next digit (3) from the dividend, add it to 730, then carry on: 7303 / 808

Let's proceed to step 7:
When dividing 7303 by 808, we get 9 with a remainder of 31.
The number 9 becomes the next digit in our result. 
Result so far: 5309.0
If we take 7272 away from 7303, we end up with 31.
Fetch the next digit (0) from the dividend, attach it to 31 and continue: 310 / 808

Step 8:
The number 808 fits into 310 0 times, leaving a remainder of 310.
The next digit of our result is 0. 
Result so far: 53090.0
If we take 0 away from 310, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 9:
808 can be fit into 3100 3 times, resulting in a remainder of 676.
Record the quotient 3 as the next digit in the result. 
Result so far: 53090.3
Subtract 2424 from 3100 to get 676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6760, and continue the process.

On to step 10:
808 can be fit into 6760 8 times, resulting in a remainder of 296.
Use 8 as the next digit of our solution. 
Result so far: 53090.38
The remainder is 296 after subtracting 6464 from 6760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Step 11:
808 goes into 2960 3 times with a remainder of 536.
Record the quotient 3 as the next digit in the result. 
Result so far: 53090.383
Subtract 2424 from 2960 to get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Step 12:
If we divide 5360 by 808, we get 6 and a remainder of 512.
The number 6 becomes the next digit in our result. 
Result so far: 53090.3836
Subtracting 4848 from 5360 leaves us with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

On to step 13:
The number 808 fits into 5120 6 times, leaving a remainder of 272.
The number 6 becomes the next digit in our result. 
Result so far: 53090.38366
Deduct 4848 from 5120 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

The final result is 53090.38366 with a remainder of 0.000272.