Let's divide 29858298 by 420
The aim is to understand the frequency of 420 in 29858298.

Step 1:
420 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 420

Moving on to step 2:
The number 420 fits into 29 0 times, leaving a remainder of 29.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 29, we end up with 29.
Grab the next digit (8) from the dividend, add it to 29, then carry on: 298 / 420

Step 3:
298 divided by 420 is 0 with a remainder of 298.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 298 after subtracting 0 from 298.
Append the next digit (5) from the dividend to 298 and continue with: 2985 / 420

Going ahead to step 4:
2985 divided by 420 is 7 with a remainder of 45.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtracting 2940 from 2985 leaves us with 45.
Include the next digit (8) from the dividend after 45, then repeat: 458 / 420

Moving on to step 5:
When dividing 458 by 420, we get 1 with a remainder of 38.
Record the quotient 1 as the next digit in the result. 
Result so far: 71.0
If we subtract 420 from 458, we get 38.
Fetch the next digit (2) from the dividend, attach it to 38 and continue: 382 / 420

On to step 6:
382 divided by 420 is 0 with a remainder of 382.
Put 0 as the next digit of the answer. 
Result so far: 710.0
If we subtract 0 from 382, we get 382.
Grab the next digit (9) from the dividend, add it to 382, then carry on: 3829 / 420

Let's proceed to step 7:
420 can be fit into 3829 9 times, resulting in a remainder of 49.
Write down 9 as next digit of the result. 
Result so far: 7109.0
If we subtract 3780 from 3829, we get 49.
Grab the next digit (8) from the dividend, add it to 49, then carry on: 498 / 420

Advancing to step 8:
420 goes into 498 1 times with a remainder of 78.
The number 1 becomes the next digit in our result. 
Result so far: 71091.0
If we subtract 420 from 498, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 9:
If we divide 780 by 420, we get 1 and a remainder of 360.
Write down 1 as next digit of the result. 
Result so far: 71091.1
The remainder is 360 after subtracting 420 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 10:
The number 420 fits into 3600 8 times, leaving a remainder of 240.
The next digit of our result is 8. 
Result so far: 71091.18
If we take 3360 away from 3600, we end up 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.

Let's proceed to step 11:
420 can be fit into 2400 5 times, resulting in a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 71091.185
The remainder is 300 after subtracting 2100 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 12:
If we divide 3000 by 420, we get 7 and a remainder of 60.
The next digit of our result is 7. 
Result so far: 71091.1857
If we take 2940 away from 3000, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
420 can be fit into 600 1 times, resulting in a remainder of 180.
Use 1 as the next digit of our solution. 
Result so far: 71091.18571
If we take 420 away from 600, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 14:
When dividing 1800 by 420, we get 4 with a remainder of 120.
The number 4 becomes the next digit in our result. 
Result so far: 71091.185714
Subtracting 1680 from 1800 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 15:
If we divide 1200 by 420, we get 2 and a remainder of 360.
The number 2 becomes the next digit in our result. 
Result so far: 71091.1857142
Subtract 840 from 1200 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 16:
3600 divided by 420 is 8 with a remainder of 240.
Record the quotient 8 as the next digit in the result. 
Result so far: 71091.18571428
Deduct 3360 from 3600 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.

The final outcome is 71091.18571428, with a leftover of 2.4e-07.