We look at the division of 42459887 by 658 
The aim is to understand the frequency of 658 in 42459887.

Step 1:
658 goes into 4 0 times 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.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 658

Moving on to step 2:
When dividing 42 by 658, we get 0 with a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (4) from the dividend, add it to 42, then carry on: 424 / 658

Going ahead to step 3:
424 divided by 658 is 0 with a remainder of 424.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 424, we end up with 424.
Take the next digit (5) from the dividend and append it to 424, then repeat: 4245 / 658

Going ahead to step 4:
658 can be fit into 4245 6 times, resulting in a remainder of 297.
The next digit of our result is 6. 
Result so far: 6.0
If we take 3948 away from 4245, we end up with 297.
Grab the next digit (9) from the dividend, add it to 297, then carry on: 2979 / 658

Going ahead to step 5:
When dividing 2979 by 658, we get 4 with a remainder of 347.
Use 4 as the next digit of our solution. 
Result so far: 64.0
If we subtract 2632 from 2979, we get 347.
Append the next digit (8) from the dividend to 347 and continue with: 3478 / 658

Moving on to step 6:
658 can be fit into 3478 5 times, resulting in a remainder of 188.
Put 5 as the next digit of the answer. 
Result so far: 645.0
Subtracting 3290 from 3478 leaves us with 188.
Bring next digit (8) of the dividend behind the 188 and repeat the process: 1888 / 658

Going ahead to step 7:
If we divide 1888 by 658, we get 2 and a remainder of 572.
Use 2 as the next digit of our solution. 
Result so far: 6452.0
Deduct 1316 from 1888 and we're left with 572.
Grab the next digit (7) from the dividend, add it to 572, then carry on: 5727 / 658

Going ahead to step 8:
658 can be fit into 5727 8 times, resulting in a remainder of 463.
The next digit of our result is 8. 
Result so far: 64528.0
If we subtract 5264 from 5727, we get 463.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4630, and continue the process.

Going ahead to step 9:
658 can be fit into 4630 7 times, resulting in a remainder of 24.
Put 7 as the next digit of the answer. 
Result so far: 64528.7
If we take 4606 away from 4630, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
658 can be fit into 240 0 times, resulting in a remainder of 240.
The next digit of our result is 0. 
Result so far: 64528.7
Deduct 0 from 240 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 11:
When dividing 2400 by 658, we get 3 with a remainder of 426.
The next digit of our result is 3. 
Result so far: 64528.703
The remainder is 426 after subtracting 1974 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4260, and continue the process.

On to step 12:
4260 divided by 658 is 6 with a remainder of 312.
Put 6 as the next digit of the answer. 
Result so far: 64528.7036
If we subtract 3948 from 4260, we get 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 13:
The number 658 fits into 3120 4 times, leaving a remainder of 488.
Write down 4 as next digit of the result. 
Result so far: 64528.70364
If we take 2632 away from 3120, we end up with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Advancing to step 14:
658 goes into 4880 7 times with a remainder of 274.
Put 7 as the next digit of the answer. 
Result so far: 64528.703647
Subtract 4606 from 4880 to get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Advancing to step 15:
658 can be fit into 2740 4 times, resulting in a remainder of 108.
Use 4 as the next digit of our solution. 
Result so far: 64528.7036474
The remainder is 108 after subtracting 2632 from 2740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 16:
If we divide 1080 by 658, we get 1 and a remainder of 422.
Record the quotient 1 as the next digit in the result. 
Result so far: 64528.70364741
The remainder is 422 after subtracting 658 from 1080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

In conclusion, the division gives 64528.70364741 with a balance of 4.22e-07.