We divide 73602174 by 390
The aim is to understand the frequency of 390 in 73602174.

Let's proceed to step 1:
When dividing 7 by 390, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 390

Advancing to step 2:
When dividing 73 by 390, we get 0 with a remainder of 73.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Bring next digit (6) of the dividend behind the 73 and repeat the process: 736 / 390

Moving on to step 3:
If we divide 736 by 390, we get 1 and a remainder of 346.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 390 from 736 to get 346.
Grab the next digit (0) from the dividend, add it to 346, then carry on: 3460 / 390

Moving on to step 4:
When dividing 3460 by 390, we get 8 with a remainder of 340.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtracting 3120 from 3460 leaves us with 340.
Fetch the next digit (2) from the dividend, attach it to 340 and continue: 3402 / 390

On to step 5:
3402 divided by 390 is 8 with a remainder of 282.
Use 8 as the next digit of our solution. 
Result so far: 188.0
Subtracting 3120 from 3402 leaves us with 282.
Grab the next digit (1) from the dividend, add it to 282, then carry on: 2821 / 390

Going ahead to step 6:
When dividing 2821 by 390, we get 7 with a remainder of 91.
The next digit of our result is 7. 
Result so far: 1887.0
Deduct 2730 from 2821 and we're left with 91.
Include the next digit (7) from the dividend after 91, then repeat: 917 / 390

Step 7:
390 goes into 917 2 times with a remainder of 137.
Write down 2 as next digit of the result. 
Result so far: 18872.0
Deduct 780 from 917 and we're left with 137.
Append the next digit (4) from the dividend to 137 and continue with: 1374 / 390

Step 8:
The number 390 fits into 1374 3 times, leaving a remainder of 204.
Write down 3 as next digit of the result. 
Result so far: 188723.0
The remainder is 204 after subtracting 1170 from 1374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 9:
2040 divided by 390 is 5 with a remainder of 90.
The next digit of our result is 5. 
Result so far: 188723.5
If we subtract 1950 from 2040, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 10:
The number 390 fits into 900 2 times, leaving a remainder of 120.
The number 2 becomes the next digit in our result. 
Result so far: 188723.52
The remainder is 120 after subtracting 780 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
The number 390 fits into 1200 3 times, leaving a remainder of 30.
The next digit of our result is 3. 
Result so far: 188723.523
Deduct 1170 from 1200 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
300 divided by 390 is 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 188723.523
Deduct 0 from 300 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 13:
The number 390 fits into 3000 7 times, leaving a remainder of 270.
Use 7 as the next digit of our solution. 
Result so far: 188723.52307
Subtracting 2730 from 3000 leaves us with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 14:
The number 390 fits into 2700 6 times, leaving a remainder of 360.
Put 6 as the next digit of the answer. 
Result so far: 188723.523076
If we subtract 2340 from 2700, we 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.

Advancing to step 15:
If we divide 3600 by 390, we get 9 and a remainder of 90.
Record the quotient 9 as the next digit in the result. 
Result so far: 188723.5230769
If we take 3510 away from 3600, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 16:
390 goes into 900 2 times with a remainder of 120.
The next digit of our result is 2. 
Result so far: 188723.52307692
The remainder is 120 after subtracting 780 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final result is 188723.52307692 with a remainder of 1.2e-07.