We divide 49155430 by 321
The aim is to understand the frequency of 321 in 49155430.

Step 1:
321 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (9) from the dividend and append it to 4, then repeat: 49 / 321

Step 2:
If we divide 49 by 321, we get 0 and a remainder of 49.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 49 and we're left with 49.
Append the next digit (1) from the dividend to 49 and continue with: 491 / 321

Moving on to step 3:
The number 321 fits into 491 1 times, leaving a remainder of 170.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 321 from 491 leaves us with 170.
Take the next digit (5) from the dividend and append it to 170, then repeat: 1705 / 321

Going ahead to step 4:
The number 321 fits into 1705 5 times, leaving a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Subtract 1605 from 1705 to get 100.
Grab the next digit (5) from the dividend, add it to 100, then carry on: 1005 / 321

Step 5:
321 can be fit into 1005 3 times, resulting in a remainder of 42.
Record the quotient 3 as the next digit in the result. 
Result so far: 153.0
If we subtract 963 from 1005, we get 42.
Take the next digit (4) from the dividend and append it to 42, then repeat: 424 / 321

On to step 6:
The number 321 fits into 424 1 times, leaving a remainder of 103.
The next digit of our result is 1. 
Result so far: 1531.0
If we take 321 away from 424, we end up with 103.
Grab the next digit (3) from the dividend, add it to 103, then carry on: 1033 / 321

On to step 7:
When dividing 1033 by 321, we get 3 with a remainder of 70.
Record the quotient 3 as the next digit in the result. 
Result so far: 15313.0
If we take 963 away from 1033, we end up with 70.
Grab the next digit (0) from the dividend, add it to 70, then carry on: 700 / 321

Going ahead to step 8:
The number 321 fits into 700 2 times, leaving a remainder of 58.
Write down 2 as next digit of the result. 
Result so far: 153132.0
Subtract 642 from 700 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 9:
When dividing 580 by 321, we get 1 with a remainder of 259.
The next digit of our result is 1. 
Result so far: 153132.1
If we subtract 321 from 580, we get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Step 10:
If we divide 2590 by 321, we get 8 and a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 153132.18
If we take 2568 away from 2590, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 11:
220 divided by 321 is 0 with a remainder of 220.
The next digit of our result is 0. 
Result so far: 153132.18
If we take 0 away from 220, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 12:
The number 321 fits into 2200 6 times, leaving a remainder of 274.
The next digit of our result is 6. 
Result so far: 153132.1806
The remainder is 274 after subtracting 1926 from 2200.
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 13:
321 can be fit into 2740 8 times, resulting in a remainder of 172.
Write down 8 as next digit of the result. 
Result so far: 153132.18068
Deduct 2568 from 2740 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Going ahead to step 14:
The number 321 fits into 1720 5 times, leaving a remainder of 115.
Write down 5 as next digit of the result. 
Result so far: 153132.180685
Subtract 1605 from 1720 to get 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Advancing to step 15:
When dividing 1150 by 321, we get 3 with a remainder of 187.
Use 3 as the next digit of our solution. 
Result so far: 153132.1806853
The remainder is 187 after subtracting 963 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Advancing to step 16:
321 goes into 1870 5 times with a remainder of 265.
Use 5 as the next digit of our solution. 
Result so far: 153132.18068535
Deduct 1605 from 1870 and we're left with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

The final result is 153132.18068535 with a remainder of 2.65e-07.