Let's divide 18348059 by 420
The aim is to understand the frequency of 420 in 18348059.

On to step 1:
1 divided by 420 is 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (8) of the dividend behind the 1 and repeat the process: 18 / 420

Going ahead to step 2:
When dividing 18 by 420, we get 0 with a remainder of 18.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 18 after subtracting 0 from 18.
Take the next digit (3) from the dividend and append it to 18, then repeat: 183 / 420

Step 3:
The number 420 fits into 183 0 times, leaving a remainder of 183.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 183, we end up with 183.
Bring next digit (4) of the dividend behind the 183 and repeat the process: 1834 / 420

Advancing to step 4:
The number 420 fits into 1834 4 times, leaving a remainder of 154.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 1680 from 1834 to get 154.
Append the next digit (8) from the dividend to 154 and continue with: 1548 / 420

Advancing to step 5:
420 goes into 1548 3 times with a remainder of 288.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Deduct 1260 from 1548 and we're left with 288.
Include the next digit (0) from the dividend after 288, then repeat: 2880 / 420

Moving on to step 6:
2880 divided by 420 is 6 with a remainder of 360.
Use 6 as the next digit of our solution. 
Result so far: 436.0
If we take 2520 away from 2880, we end up with 360.
Include the next digit (5) from the dividend after 360, then repeat: 3605 / 420

On to step 7:
420 can be fit into 3605 8 times, resulting in a remainder of 245.
Use 8 as the next digit of our solution. 
Result so far: 4368.0
If we take 3360 away from 3605, we end up with 245.
Fetch the next digit (9) from the dividend, attach it to 245 and continue: 2459 / 420

Going ahead to step 8:
2459 divided by 420 is 5 with a remainder of 359.
Write down 5 as next digit of the result. 
Result so far: 43685.0
The remainder is 359 after subtracting 2100 from 2459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3590, and continue the process.

Moving on to step 9:
When dividing 3590 by 420, we get 8 with a remainder of 230.
Put 8 as the next digit of the answer. 
Result so far: 43685.8
Subtract 3360 from 3590 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

On to step 10:
If we divide 2300 by 420, we get 5 and a remainder of 200.
The next digit of our result is 5. 
Result so far: 43685.85
The remainder is 200 after subtracting 2100 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 11:
420 goes into 2000 4 times with a remainder of 320.
The number 4 becomes the next digit in our result. 
Result so far: 43685.854
If we subtract 1680 from 2000, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Going ahead to step 12:
420 goes into 3200 7 times with a remainder of 260.
Record the quotient 7 as the next digit in the result. 
Result so far: 43685.8547
If we take 2940 away from 3200, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Moving on to step 13:
When dividing 2600 by 420, we get 6 with a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 43685.85476
If we take 2520 away from 2600, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
420 can be fit into 800 1 times, resulting in a remainder of 380.
The next digit of our result is 1. 
Result so far: 43685.854761
Deduct 420 from 800 and we're left with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 15:
If we divide 3800 by 420, we get 9 and a remainder of 20.
The next digit of our result is 9. 
Result so far: 43685.8547619
Subtracting 3780 from 3800 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 16:
When dividing 200 by 420, we get 0 with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 43685.8547619
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 43685.8547619 with a remainder of 2e-07.