78139534 divided by 888 
The aim is to understand the frequency of 888 in 78139534.

Let's proceed to step 1:
When dividing 7 by 888, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 888

Advancing to step 2:
The number 888 fits into 78 0 times, leaving a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Grab the next digit (1) from the dividend, add it to 78, then carry on: 781 / 888

Going ahead to step 3:
The number 888 fits into 781 0 times, leaving a remainder of 781.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 781, we end up with 781.
Bring next digit (3) of the dividend behind the 781 and repeat the process: 7813 / 888

Let's proceed to step 4:
7813 divided by 888 is 8 with a remainder of 709.
Write down 8 as next digit of the result. 
Result so far: 8.0
Deduct 7104 from 7813 and we're left with 709.
Append the next digit (9) from the dividend to 709 and continue with: 7099 / 888

Advancing to step 5:
When dividing 7099 by 888, we get 7 with a remainder of 883.
Use 7 as the next digit of our solution. 
Result so far: 87.0
Deduct 6216 from 7099 and we're left with 883.
Include the next digit (5) from the dividend after 883, then repeat: 8835 / 888

Let's proceed to step 6:
888 can be fit into 8835 9 times, resulting in a remainder of 843.
Put 9 as the next digit of the answer. 
Result so far: 879.0
If we take 7992 away from 8835, we end up with 843.
Fetch the next digit (3) from the dividend, attach it to 843 and continue: 8433 / 888

Advancing to step 7:
When dividing 8433 by 888, we get 9 with a remainder of 441.
Put 9 as the next digit of the answer. 
Result so far: 8799.0
If we subtract 7992 from 8433, we get 441.
Append the next digit (4) from the dividend to 441 and continue with: 4414 / 888

Going ahead to step 8:
888 can be fit into 4414 4 times, resulting in a remainder of 862.
Record the quotient 4 as the next digit in the result. 
Result so far: 87994.0
If we subtract 3552 from 4414, we get 862.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8620, and continue the process.

On to step 9:
8620 divided by 888 is 9 with a remainder of 628.
Record the quotient 9 as the next digit in the result. 
Result so far: 87994.9
Subtract 7992 from 8620 to get 628.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6280, and continue the process.

Advancing to step 10:
If we divide 6280 by 888, we get 7 and a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 87994.97
If we subtract 6216 from 6280, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 11:
When dividing 640 by 888, we get 0 with a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 87994.97
Deduct 0 from 640 and we're left with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 12:
If we divide 6400 by 888, we get 7 and a remainder of 184.
Write down 7 as next digit of the result. 
Result so far: 87994.9707
If we subtract 6216 from 6400, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 13:
888 can be fit into 1840 2 times, resulting in a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 87994.97072
Subtract 1776 from 1840 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 14:
If we divide 640 by 888, we get 0 and a remainder of 640.
Put 0 as the next digit of the answer. 
Result so far: 87994.97072
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 15:
888 can be fit into 6400 7 times, resulting in a remainder of 184.
The next digit of our result is 7. 
Result so far: 87994.9707207
Deduct 6216 from 6400 and we're left with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Advancing to step 16:
888 goes into 1840 2 times with a remainder of 64.
The next digit of our result is 2. 
Result so far: 87994.97072072
Subtracting 1776 from 1840 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.

The final outcome is 87994.97072072, with a leftover of 6.4e-08.