42387736 ÷ 879 
The aim is to understand the frequency of 879 in 42387736.

Moving on to step 1:
When dividing 4 by 879, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 879

Moving on to step 2:
42 divided by 879 is 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Append the next digit (3) from the dividend to 42 and continue with: 423 / 879

Going ahead to step 3:
The number 879 fits into 423 0 times, leaving a remainder of 423.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 423 to get 423.
Bring next digit (8) of the dividend behind the 423 and repeat the process: 4238 / 879

Advancing to step 4:
879 can be fit into 4238 4 times, resulting in a remainder of 722.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 3516 from 4238 and we're left with 722.
Bring next digit (7) of the dividend behind the 722 and repeat the process: 7227 / 879

Moving on to step 5:
When dividing 7227 by 879, we get 8 with a remainder of 195.
Write down 8 as next digit of the result. 
Result so far: 48.0
If we take 7032 away from 7227, we end up with 195.
Include the next digit (7) from the dividend after 195, then repeat: 1957 / 879

Step 6:
When dividing 1957 by 879, we get 2 with a remainder of 199.
Put 2 as the next digit of the answer. 
Result so far: 482.0
The remainder is 199 after subtracting 1758 from 1957.
Take the next digit (3) from the dividend and append it to 199, then repeat: 1993 / 879

On to step 7:
If we divide 1993 by 879, we get 2 and a remainder of 235.
Record the quotient 2 as the next digit in the result. 
Result so far: 4822.0
If we take 1758 away from 1993, we end up with 235.
Append the next digit (6) from the dividend to 235 and continue with: 2356 / 879

Moving on to step 8:
879 can be fit into 2356 2 times, resulting in a remainder of 598.
Write down 2 as next digit of the result. 
Result so far: 48222.0
Subtracting 1758 from 2356 leaves us with 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Step 9:
The number 879 fits into 5980 6 times, leaving a remainder of 706.
Put 6 as the next digit of the answer. 
Result so far: 48222.6
If we subtract 5274 from 5980, we get 706.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7060, and continue the process.

Moving on to step 10:
When dividing 7060 by 879, we get 8 with a remainder of 28.
The next digit of our result is 8. 
Result so far: 48222.68
Subtracting 7032 from 7060 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 11:
879 goes into 280 0 times with a remainder of 280.
Use 0 as the next digit of our solution. 
Result so far: 48222.68
The remainder is 280 after subtracting 0 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

On to step 12:
The number 879 fits into 2800 3 times, leaving a remainder of 163.
The number 3 becomes the next digit in our result. 
Result so far: 48222.6803
The remainder is 163 after subtracting 2637 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Let's proceed to step 13:
879 goes into 1630 1 times with a remainder of 751.
Use 1 as the next digit of our solution. 
Result so far: 48222.68031
The remainder is 751 after subtracting 879 from 1630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7510, and continue the process.

Advancing to step 14:
When dividing 7510 by 879, we get 8 with a remainder of 478.
Record the quotient 8 as the next digit in the result. 
Result so far: 48222.680318
If we take 7032 away from 7510, we end up with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Advancing to step 15:
879 can be fit into 4780 5 times, resulting in a remainder of 385.
The number 5 becomes the next digit in our result. 
Result so far: 48222.6803185
If we subtract 4395 from 4780, we get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 16:
3850 divided by 879 is 4 with a remainder of 334.
Write down 4 as next digit of the result. 
Result so far: 48222.68031854
Deduct 3516 from 3850 and we're left with 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

The final outcome is 48222.68031854, with a leftover of 3.34e-07.