78151538 ÷ 899 
The aim is to understand the frequency of 899 in 78151538.

Moving on to step 1:
If we divide 7 by 899, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 899

Advancing to step 2:
The number 899 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Include the next digit (1) from the dividend after 78, then repeat: 781 / 899

On to step 3:
If we divide 781 by 899, we get 0 and a remainder of 781.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 781 after subtracting 0 from 781.
Append the next digit (5) from the dividend to 781 and continue with: 7815 / 899

Let's proceed to step 4:
The number 899 fits into 7815 8 times, leaving a remainder of 623.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 7192 from 7815, we get 623.
Include the next digit (1) from the dividend after 623, then repeat: 6231 / 899

On to step 5:
899 goes into 6231 6 times with a remainder of 837.
The next digit of our result is 6. 
Result so far: 86.0
The remainder is 837 after subtracting 5394 from 6231.
Include the next digit (5) from the dividend after 837, then repeat: 8375 / 899

Let's proceed to step 6:
8375 divided by 899 is 9 with a remainder of 284.
Write down 9 as next digit of the result. 
Result so far: 869.0
If we subtract 8091 from 8375, we get 284.
Bring next digit (3) of the dividend behind the 284 and repeat the process: 2843 / 899

Advancing to step 7:
If we divide 2843 by 899, we get 3 and a remainder of 146.
The number 3 becomes the next digit in our result. 
Result so far: 8693.0
If we take 2697 away from 2843, we end up with 146.
Fetch the next digit (8) from the dividend, attach it to 146 and continue: 1468 / 899

Moving on to step 8:
When dividing 1468 by 899, we get 1 with a remainder of 569.
Write down 1 as next digit of the result. 
Result so far: 86931.0
Deduct 899 from 1468 and we're left with 569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5690, and continue the process.

Advancing to step 9:
5690 divided by 899 is 6 with a remainder of 296.
Put 6 as the next digit of the answer. 
Result so far: 86931.6
Subtract 5394 from 5690 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 10:
2960 divided by 899 is 3 with a remainder of 263.
Use 3 as the next digit of our solution. 
Result so far: 86931.63
Subtract 2697 from 2960 to get 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

Let's proceed to step 11:
2630 divided by 899 is 2 with a remainder of 832.
The next digit of our result is 2. 
Result so far: 86931.632
Subtracting 1798 from 2630 leaves us with 832.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8320, and continue the process.

Advancing to step 12:
899 goes into 8320 9 times with a remainder of 229.
Use 9 as the next digit of our solution. 
Result so far: 86931.6329
The remainder is 229 after subtracting 8091 from 8320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2290, and continue the process.

On to step 13:
The number 899 fits into 2290 2 times, leaving a remainder of 492.
The number 2 becomes the next digit in our result. 
Result so far: 86931.63292
If we take 1798 away from 2290, we end up with 492.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4920, and continue the process.

Going ahead to step 14:
The number 899 fits into 4920 5 times, leaving a remainder of 425.
The number 5 becomes the next digit in our result. 
Result so far: 86931.632925
Subtracting 4495 from 4920 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Advancing to step 15:
If we divide 4250 by 899, we get 4 and a remainder of 654.
The number 4 becomes the next digit in our result. 
Result so far: 86931.6329254
Subtract 3596 from 4250 to get 654.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6540, and continue the process.

Step 16:
6540 divided by 899 is 7 with a remainder of 247.
Record the quotient 7 as the next digit in the result. 
Result so far: 86931.63292547
Subtract 6293 from 6540 to get 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

In conclusion, the division gives 86931.63292547 with a balance of 2.47e-07.