We're dividing 42159339 by 287 
The aim is to understand the frequency of 287 in 42159339.

Step 1:
287 goes into 4 0 times with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 287

Advancing to step 2:
If we divide 42 by 287, we get 0 and a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Fetch the next digit (1) from the dividend, attach it to 42 and continue: 421 / 287

Moving on to step 3:
The number 287 fits into 421 1 times, leaving a remainder of 134.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 134 after subtracting 287 from 421.
Bring next digit (5) of the dividend behind the 134 and repeat the process: 1345 / 287

Advancing to step 4:
The number 287 fits into 1345 4 times, leaving a remainder of 197.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtract 1148 from 1345 to get 197.
Append the next digit (9) from the dividend to 197 and continue with: 1979 / 287

Going ahead to step 5:
287 goes into 1979 6 times with a remainder of 257.
Write down 6 as next digit of the result. 
Result so far: 146.0
The remainder is 257 after subtracting 1722 from 1979.
Fetch the next digit (3) from the dividend, attach it to 257 and continue: 2573 / 287

Advancing to step 6:
287 goes into 2573 8 times with a remainder of 277.
Record the quotient 8 as the next digit in the result. 
Result so far: 1468.0
If we take 2296 away from 2573, we end up with 277.
Fetch the next digit (3) from the dividend, attach it to 277 and continue: 2773 / 287

Moving on to step 7:
When dividing 2773 by 287, we get 9 with a remainder of 190.
Put 9 as the next digit of the answer. 
Result so far: 14689.0
If we subtract 2583 from 2773, we get 190.
Bring next digit (9) of the dividend behind the 190 and repeat the process: 1909 / 287

Going ahead to step 8:
287 goes into 1909 6 times with a remainder of 187.
The next digit of our result is 6. 
Result so far: 146896.0
Deduct 1722 from 1909 and we're left with 187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Going ahead to step 9:
If we divide 1870 by 287, we get 6 and a remainder of 148.
The next digit of our result is 6. 
Result so far: 146896.6
If we subtract 1722 from 1870, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Step 10:
When dividing 1480 by 287, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 146896.65
If we take 1435 away from 1480, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 11:
The number 287 fits into 450 1 times, leaving a remainder of 163.
The next digit of our result is 1. 
Result so far: 146896.651
Subtract 287 from 450 to get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

Going ahead to step 12:
287 goes into 1630 5 times with a remainder of 195.
Use 5 as the next digit of our solution. 
Result so far: 146896.6515
If we take 1435 away from 1630, we end up with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Advancing to step 13:
1950 divided by 287 is 6 with a remainder of 228.
Use 6 as the next digit of our solution. 
Result so far: 146896.65156
If we take 1722 away from 1950, we end up with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

On to step 14:
When dividing 2280 by 287, we get 7 with a remainder of 271.
Use 7 as the next digit of our solution. 
Result so far: 146896.651567
If we subtract 2009 from 2280, we get 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

On to step 15:
287 can be fit into 2710 9 times, resulting in a remainder of 127.
The number 9 becomes the next digit in our result. 
Result so far: 146896.6515679
If we subtract 2583 from 2710, we get 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 16:
The number 287 fits into 1270 4 times, leaving a remainder of 122.
The next digit of our result is 4. 
Result so far: 146896.65156794
If we subtract 1148 from 1270, we get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

In conclusion, the division gives 146896.65156794 with a balance of 1.22e-07.