73301896 divided by 407 
The aim is to understand the frequency of 407 in 73301896.

Advancing to step 1:
7 divided by 407 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 407

Going ahead to step 2:
If we divide 73 by 407, we get 0 and a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 73 and we're left with 73.
Include the next digit (3) from the dividend after 73, then repeat: 733 / 407

Step 3:
407 goes into 733 1 times with a remainder of 326.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 326 after subtracting 407 from 733.
Take the next digit (0) from the dividend and append it to 326, then repeat: 3260 / 407

On to step 4:
3260 divided by 407 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 18.0
Deduct 3256 from 3260 and we're left with 4.
Bring next digit (1) of the dividend behind the 4 and repeat the process: 41 / 407

Moving on to step 5:
407 goes into 41 0 times with a remainder of 41.
The next digit of our result is 0. 
Result so far: 180.0
Subtracting 0 from 41 leaves us with 41.
Include the next digit (8) from the dividend after 41, then repeat: 418 / 407

Moving on to step 6:
407 can be fit into 418 1 times, resulting in a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1801.0
Deduct 407 from 418 and we're left with 11.
Bring next digit (9) of the dividend behind the 11 and repeat the process: 119 / 407

Step 7:
407 can be fit into 119 0 times, resulting in a remainder of 119.
Put 0 as the next digit of the answer. 
Result so far: 18010.0
The remainder is 119 after subtracting 0 from 119.
Bring next digit (6) of the dividend behind the 119 and repeat the process: 1196 / 407

Let's proceed to step 8:
407 goes into 1196 2 times with a remainder of 382.
Write down 2 as next digit of the result. 
Result so far: 180102.0
Deduct 814 from 1196 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

On to step 9:
407 goes into 3820 9 times with a remainder of 157.
Record the quotient 9 as the next digit in the result. 
Result so far: 180102.9
If we take 3663 away from 3820, we end up with 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Advancing to step 10:
The number 407 fits into 1570 3 times, leaving a remainder of 349.
Use 3 as the next digit of our solution. 
Result so far: 180102.93
Subtract 1221 from 1570 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Let's proceed to step 11:
407 can be fit into 3490 8 times, resulting in a remainder of 234.
The number 8 becomes the next digit in our result. 
Result so far: 180102.938
If we take 3256 away from 3490, we end up with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Going ahead to step 12:
2340 divided by 407 is 5 with a remainder of 305.
Record the quotient 5 as the next digit in the result. 
Result so far: 180102.9385
The remainder is 305 after subtracting 2035 from 2340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

Advancing to step 13:
The number 407 fits into 3050 7 times, leaving a remainder of 201.
The number 7 becomes the next digit in our result. 
Result so far: 180102.93857
The remainder is 201 after subtracting 2849 from 3050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Going ahead to step 14:
When dividing 2010 by 407, we get 4 with a remainder of 382.
Put 4 as the next digit of the answer. 
Result so far: 180102.938574
If we take 1628 away from 2010, we end up with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Moving on to step 15:
If we divide 3820 by 407, we get 9 and a remainder of 157.
The number 9 becomes the next digit in our result. 
Result so far: 180102.9385749
Subtract 3663 from 3820 to get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Moving on to step 16:
If we divide 1570 by 407, we get 3 and a remainder of 349.
The next digit of our result is 3. 
Result so far: 180102.93857493
Subtract 1221 from 1570 to get 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

The quotient of the division is 180102.93857493, and the remainder is 3.49e-07.