We're dividing 78618015 by 419 
The aim is to understand the frequency of 419 in 78618015.

Advancing to step 1:
When dividing 7 by 419, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 419

Let's proceed to step 2:
419 can be fit into 78 0 times, resulting in a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Bring next digit (6) of the dividend behind the 78 and repeat the process: 786 / 419

Step 3:
The number 419 fits into 786 1 times, leaving a remainder of 367.
The next digit of our result is 1. 
Result so far: 1.0
If we take 419 away from 786, we end up with 367.
Grab the next digit (1) from the dividend, add it to 367, then carry on: 3671 / 419

Advancing to step 4:
419 goes into 3671 8 times with a remainder of 319.
Write down 8 as next digit of the result. 
Result so far: 18.0
Deduct 3352 from 3671 and we're left with 319.
Fetch the next digit (8) from the dividend, attach it to 319 and continue: 3198 / 419

Let's proceed to step 5:
3198 divided by 419 is 7 with a remainder of 265.
Put 7 as the next digit of the answer. 
Result so far: 187.0
If we take 2933 away from 3198, we end up with 265.
Append the next digit (0) from the dividend to 265 and continue with: 2650 / 419

Advancing to step 6:
419 goes into 2650 6 times with a remainder of 136.
The number 6 becomes the next digit in our result. 
Result so far: 1876.0
Subtract 2514 from 2650 to get 136.
Append the next digit (1) from the dividend to 136 and continue with: 1361 / 419

On to step 7:
When dividing 1361 by 419, we get 3 with a remainder of 104.
The next digit of our result is 3. 
Result so far: 18763.0
Deduct 1257 from 1361 and we're left with 104.
Bring next digit (5) of the dividend behind the 104 and repeat the process: 1045 / 419

Step 8:
When dividing 1045 by 419, we get 2 with a remainder of 207.
The next digit of our result is 2. 
Result so far: 187632.0
If we take 838 away from 1045, we end up with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Going ahead to step 9:
419 can be fit into 2070 4 times, resulting in a remainder of 394.
Write down 4 as next digit of the result. 
Result so far: 187632.4
The remainder is 394 after subtracting 1676 from 2070.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Going ahead to step 10:
3940 divided by 419 is 9 with a remainder of 169.
Put 9 as the next digit of the answer. 
Result so far: 187632.49
Subtract 3771 from 3940 to get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Advancing to step 11:
If we divide 1690 by 419, we get 4 and a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 187632.494
If we take 1676 away from 1690, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 12:
419 can be fit into 140 0 times, resulting in a remainder of 140.
Put 0 as the next digit of the answer. 
Result so far: 187632.494
The remainder is 140 after subtracting 0 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 13:
If we divide 1400 by 419, we get 3 and a remainder of 143.
The number 3 becomes the next digit in our result. 
Result so far: 187632.49403
If we take 1257 away from 1400, we end up with 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Let's proceed to step 14:
The number 419 fits into 1430 3 times, leaving a remainder of 173.
The number 3 becomes the next digit in our result. 
Result so far: 187632.494033
If we subtract 1257 from 1430, we get 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

The final outcome is 187632.494033, with a leftover of 1.73e-05.