42281629 ÷ 249 
The aim is to understand the frequency of 249 in 42281629.

On to step 1:
If we divide 4 by 249, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 249

Step 2:
249 goes into 42 0 times with a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Take the next digit (2) from the dividend and append it to 42, then repeat: 422 / 249

Let's proceed to step 3:
249 can be fit into 422 1 times, resulting in a remainder of 173.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 249 away from 422, we end up with 173.
Append the next digit (8) from the dividend to 173 and continue with: 1738 / 249

Moving on to step 4:
1738 divided by 249 is 6 with a remainder of 244.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we subtract 1494 from 1738, we get 244.
Fetch the next digit (1) from the dividend, attach it to 244 and continue: 2441 / 249

Let's proceed to step 5:
The number 249 fits into 2441 9 times, leaving a remainder of 200.
The next digit of our result is 9. 
Result so far: 169.0
If we take 2241 away from 2441, we end up with 200.
Bring next digit (6) of the dividend behind the 200 and repeat the process: 2006 / 249

Advancing to step 6:
The number 249 fits into 2006 8 times, leaving a remainder of 14.
Write down 8 as next digit of the result. 
Result so far: 1698.0
Deduct 1992 from 2006 and we're left with 14.
Take the next digit (2) from the dividend and append it to 14, then repeat: 142 / 249

Going ahead to step 7:
When dividing 142 by 249, we get 0 with a remainder of 142.
Use 0 as the next digit of our solution. 
Result so far: 16980.0
The remainder is 142 after subtracting 0 from 142.
Include the next digit (9) from the dividend after 142, then repeat: 1429 / 249

On to step 8:
If we divide 1429 by 249, we get 5 and a remainder of 184.
The number 5 becomes the next digit in our result. 
Result so far: 169805.0
Deduct 1245 from 1429 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.

On to step 9:
1840 divided by 249 is 7 with a remainder of 97.
Put 7 as the next digit of the answer. 
Result so far: 169805.7
Subtracting 1743 from 1840 leaves us with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

On to step 10:
If we divide 970 by 249, we get 3 and a remainder of 223.
The number 3 becomes the next digit in our result. 
Result so far: 169805.73
If we take 747 away from 970, we end up with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Step 11:
2230 divided by 249 is 8 with a remainder of 238.
The next digit of our result is 8. 
Result so far: 169805.738
Deduct 1992 from 2230 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Moving on to step 12:
2380 divided by 249 is 9 with a remainder of 139.
The next digit of our result is 9. 
Result so far: 169805.7389
Subtract 2241 from 2380 to get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 13:
When dividing 1390 by 249, we get 5 with a remainder of 145.
Use 5 as the next digit of our solution. 
Result so far: 169805.73895
Deduct 1245 from 1390 and we're left with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 14:
1450 divided by 249 is 5 with a remainder of 205.
Put 5 as the next digit of the answer. 
Result so far: 169805.738955
Deduct 1245 from 1450 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

The final outcome is 169805.738955, with a leftover of 2.05e-05.