59845670 divided by 321 
The aim is to understand the frequency of 321 in 59845670.

Step 1:
5 divided by 321 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 321

On to step 2:
321 can be fit into 59 0 times, resulting in a remainder of 59.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 59 and we're left with 59.
Append the next digit (8) from the dividend to 59 and continue with: 598 / 321

On to step 3:
598 divided by 321 is 1 with a remainder of 277.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 321 away from 598, we end up with 277.
Bring next digit (4) of the dividend behind the 277 and repeat the process: 2774 / 321

On to step 4:
If we divide 2774 by 321, we get 8 and a remainder of 206.
Put 8 as the next digit of the answer. 
Result so far: 18.0
Deduct 2568 from 2774 and we're left with 206.
Fetch the next digit (5) from the dividend, attach it to 206 and continue: 2065 / 321

Let's proceed to step 5:
321 can be fit into 2065 6 times, resulting in a remainder of 139.
The number 6 becomes the next digit in our result. 
Result so far: 186.0
If we take 1926 away from 2065, we end up with 139.
Take the next digit (6) from the dividend and append it to 139, then repeat: 1396 / 321

Let's proceed to step 6:
1396 divided by 321 is 4 with a remainder of 112.
Write down 4 as next digit of the result. 
Result so far: 1864.0
Subtract 1284 from 1396 to get 112.
Append the next digit (7) from the dividend to 112 and continue with: 1127 / 321

On to step 7:
The number 321 fits into 1127 3 times, leaving a remainder of 164.
Put 3 as the next digit of the answer. 
Result so far: 18643.0
Subtract 963 from 1127 to get 164.
Bring next digit (0) of the dividend behind the 164 and repeat the process: 1640 / 321

Step 8:
321 goes into 1640 5 times with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 186435.0
If we take 1605 away from 1640, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 9:
321 goes into 350 1 times with a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 186435.1
The remainder is 29 after subtracting 321 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 10:
If we divide 290 by 321, we get 0 and a remainder of 290.
Record the quotient 0 as the next digit in the result. 
Result so far: 186435.1
Subtracting 0 from 290 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Let's proceed to step 11:
321 goes into 2900 9 times with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 186435.109
Subtract 2889 from 2900 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 12:
When dividing 110 by 321, we get 0 with a remainder of 110.
The number 0 becomes the next digit in our result. 
Result so far: 186435.109
If we subtract 0 from 110, we get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 13:
If we divide 1100 by 321, we get 3 and a remainder of 137.
Put 3 as the next digit of the answer. 
Result so far: 186435.10903
Subtract 963 from 1100 to get 137.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Let's proceed to step 14:
If we divide 1370 by 321, we get 4 and a remainder of 86.
Write down 4 as next digit of the result. 
Result so far: 186435.109034
Subtract 1284 from 1370 to get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 15:
321 goes into 860 2 times with a remainder of 218.
Write down 2 as next digit of the result. 
Result so far: 186435.1090342
If we take 642 away from 860, we end up with 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Step 16:
When dividing 2180 by 321, we get 6 with a remainder of 254.
Put 6 as the next digit of the answer. 
Result so far: 186435.10903426
If we take 1926 away from 2180, we end up with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

The final outcome is 186435.10903426, with a leftover of 2.54e-07.