87167215 ÷ 808 
The aim is to understand the frequency of 808 in 87167215.

Step 1:
808 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 808

Moving on to step 2:
808 goes into 87 0 times with a remainder of 87.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Append the next digit (1) from the dividend to 87 and continue with: 871 / 808

Advancing to step 3:
871 divided by 808 is 1 with a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 808 from 871, we get 63.
Bring next digit (6) of the dividend behind the 63 and repeat the process: 636 / 808

Advancing to step 4:
808 can be fit into 636 0 times, resulting in a remainder of 636.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
The remainder is 636 after subtracting 0 from 636.
Append the next digit (7) from the dividend to 636 and continue with: 6367 / 808

On to step 5:
When dividing 6367 by 808, we get 7 with a remainder of 711.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
If we subtract 5656 from 6367, we get 711.
Fetch the next digit (2) from the dividend, attach it to 711 and continue: 7112 / 808

Step 6:
808 can be fit into 7112 8 times, resulting in a remainder of 648.
Write down 8 as next digit of the result. 
Result so far: 1078.0
If we subtract 6464 from 7112, we get 648.
Grab the next digit (1) from the dividend, add it to 648, then carry on: 6481 / 808

Advancing to step 7:
808 can be fit into 6481 8 times, resulting in a remainder of 17.
Record the quotient 8 as the next digit in the result. 
Result so far: 10788.0
Deduct 6464 from 6481 and we're left with 17.
Fetch the next digit (5) from the dividend, attach it to 17 and continue: 175 / 808

Advancing to step 8:
The number 808 fits into 175 0 times, leaving a remainder of 175.
The number 0 becomes the next digit in our result. 
Result so far: 107880.0
Deduct 0 from 175 and we're left with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Moving on to step 9:
The number 808 fits into 1750 2 times, leaving a remainder of 134.
The number 2 becomes the next digit in our result. 
Result so far: 107880.2
Subtracting 1616 from 1750 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Let's proceed to step 10:
When dividing 1340 by 808, we get 1 with a remainder of 532.
The next digit of our result is 1. 
Result so far: 107880.21
If we take 808 away from 1340, we end up with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Moving on to step 11:
When dividing 5320 by 808, we get 6 with a remainder of 472.
The number 6 becomes the next digit in our result. 
Result so far: 107880.216
Deduct 4848 from 5320 and we're left with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Advancing to step 12:
808 goes into 4720 5 times with a remainder of 680.
The number 5 becomes the next digit in our result. 
Result so far: 107880.2165
Deduct 4040 from 4720 and we're left with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Advancing to step 13:
The number 808 fits into 6800 8 times, leaving a remainder of 336.
Put 8 as the next digit of the answer. 
Result so far: 107880.21658
If we subtract 6464 from 6800, we get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Moving on to step 14:
If we divide 3360 by 808, we get 4 and a remainder of 128.
Record the quotient 4 as the next digit in the result. 
Result so far: 107880.216584
Subtracting 3232 from 3360 leaves us with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 15:
If we divide 1280 by 808, we get 1 and a remainder of 472.
Put 1 as the next digit of the answer. 
Result so far: 107880.2165841
Subtract 808 from 1280 to get 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Step 16:
If we divide 4720 by 808, we get 5 and a remainder of 680.
The number 5 becomes the next digit in our result. 
Result so far: 107880.21658415
If we take 4040 away from 4720, we end up with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

The final result is 107880.21658415 with a remainder of 6.8e-07.