77189092 ÷ 870 
The aim is to understand the frequency of 870 in 77189092.

Moving on to step 1:
If we divide 7 by 870, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 870

Step 2:
870 can be fit into 77 0 times, resulting in a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Include the next digit (1) from the dividend after 77, then repeat: 771 / 870

Let's proceed to step 3:
870 can be fit into 771 0 times, resulting in a remainder of 771.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 771 to get 771.
Fetch the next digit (8) from the dividend, attach it to 771 and continue: 7718 / 870

Moving on to step 4:
870 can be fit into 7718 8 times, resulting in a remainder of 758.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 6960 from 7718 to get 758.
Append the next digit (9) from the dividend to 758 and continue with: 7589 / 870

Moving on to step 5:
The number 870 fits into 7589 8 times, leaving a remainder of 629.
Put 8 as the next digit of the answer. 
Result so far: 88.0
Subtracting 6960 from 7589 leaves us with 629.
Append the next digit (0) from the dividend to 629 and continue with: 6290 / 870

On to step 6:
870 can be fit into 6290 7 times, resulting in a remainder of 200.
Put 7 as the next digit of the answer. 
Result so far: 887.0
If we take 6090 away from 6290, we end up with 200.
Append the next digit (9) from the dividend to 200 and continue with: 2009 / 870

Going ahead to step 7:
2009 divided by 870 is 2 with a remainder of 269.
Write down 2 as next digit of the result. 
Result so far: 8872.0
The remainder is 269 after subtracting 1740 from 2009.
Fetch the next digit (2) from the dividend, attach it to 269 and continue: 2692 / 870

Moving on to step 8:
870 goes into 2692 3 times with a remainder of 82.
Record the quotient 3 as the next digit in the result. 
Result so far: 88723.0
If we subtract 2610 from 2692, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 9:
The number 870 fits into 820 0 times, leaving a remainder of 820.
Write down 0 as next digit of the result. 
Result so far: 88723.0
Subtracting 0 from 820 leaves us with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Going ahead to step 10:
870 goes into 8200 9 times with a remainder of 370.
The number 9 becomes the next digit in our result. 
Result so far: 88723.09
Deduct 7830 from 8200 and we're left with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 11:
When dividing 3700 by 870, we get 4 with a remainder of 220.
Put 4 as the next digit of the answer. 
Result so far: 88723.094
Subtract 3480 from 3700 to get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 12:
870 can be fit into 2200 2 times, resulting in a remainder of 460.
The next digit of our result is 2. 
Result so far: 88723.0942
If we take 1740 away from 2200, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Step 13:
4600 divided by 870 is 5 with a remainder of 250.
Write down 5 as next digit of the result. 
Result so far: 88723.09425
Deduct 4350 from 4600 and we're left with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

On to step 14:
If we divide 2500 by 870, we get 2 and a remainder of 760.
Put 2 as the next digit of the answer. 
Result so far: 88723.094252
Subtracting 1740 from 2500 leaves us with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Step 15:
If we divide 7600 by 870, we get 8 and a remainder of 640.
Record the quotient 8 as the next digit in the result. 
Result so far: 88723.0942528
The remainder is 640 after subtracting 6960 from 7600.
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 16:
When dividing 6400 by 870, we get 7 with a remainder of 310.
Write down 7 as next digit of the result. 
Result so far: 88723.09425287
Subtract 6090 from 6400 to get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

After the division, we end up with 88723.09425287 and a remainder of 3.1e-07.