73994703 ÷ 391 
The aim is to understand the frequency of 391 in 73994703.

Advancing to step 1:
When dividing 7 by 391, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 391

Moving on to step 2:
When dividing 73 by 391, we get 0 with a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 73, we end up with 73.
Fetch the next digit (9) from the dividend, attach it to 73 and continue: 739 / 391

Step 3:
391 can be fit into 739 1 times, resulting in a remainder of 348.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 391 from 739 leaves us with 348.
Fetch the next digit (9) from the dividend, attach it to 348 and continue: 3489 / 391

Going ahead to step 4:
391 can be fit into 3489 8 times, resulting in a remainder of 361.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Subtract 3128 from 3489 to get 361.
Grab the next digit (4) from the dividend, add it to 361, then carry on: 3614 / 391

Advancing to step 5:
3614 divided by 391 is 9 with a remainder of 95.
Record the quotient 9 as the next digit in the result. 
Result so far: 189.0
Subtracting 3519 from 3614 leaves us with 95.
Grab the next digit (7) from the dividend, add it to 95, then carry on: 957 / 391

Let's proceed to step 6:
If we divide 957 by 391, we get 2 and a remainder of 175.
Use 2 as the next digit of our solution. 
Result so far: 1892.0
Subtract 782 from 957 to get 175.
Fetch the next digit (0) from the dividend, attach it to 175 and continue: 1750 / 391

Advancing to step 7:
The number 391 fits into 1750 4 times, leaving a remainder of 186.
Write down 4 as next digit of the result. 
Result so far: 18924.0
Deduct 1564 from 1750 and we're left with 186.
Append the next digit (3) from the dividend to 186 and continue with: 1863 / 391

On to step 8:
The number 391 fits into 1863 4 times, leaving a remainder of 299.
The number 4 becomes the next digit in our result. 
Result so far: 189244.0
Deduct 1564 from 1863 and we're left with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Let's proceed to step 9:
2990 divided by 391 is 7 with a remainder of 253.
Use 7 as the next digit of our solution. 
Result so far: 189244.7
If we take 2737 away from 2990, we end up with 253.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2530, and continue the process.

Step 10:
391 goes into 2530 6 times with a remainder of 184.
Record the quotient 6 as the next digit in the result. 
Result so far: 189244.76
Subtracting 2346 from 2530 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Moving on to step 11:
When dividing 1840 by 391, we get 4 with a remainder of 276.
Record the quotient 4 as the next digit in the result. 
Result so far: 189244.764
If we take 1564 away from 1840, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Going ahead to step 12:
2760 divided by 391 is 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 189244.7647
Subtracting 2737 from 2760 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 13:
If we divide 230 by 391, we get 0 and a remainder of 230.
Write down 0 as next digit of the result. 
Result so far: 189244.7647
The remainder is 230 after subtracting 0 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Advancing to step 14:
2300 divided by 391 is 5 with a remainder of 345.
Put 5 as the next digit of the answer. 
Result so far: 189244.764705
The remainder is 345 after subtracting 1955 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

Let's proceed to step 15:
When dividing 3450 by 391, we get 8 with a remainder of 322.
The number 8 becomes the next digit in our result. 
Result so far: 189244.7647058
If we take 3128 away from 3450, we end up with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Moving on to step 16:
3220 divided by 391 is 8 with a remainder of 92.
The number 8 becomes the next digit in our result. 
Result so far: 189244.76470588
Subtracting 3128 from 3220 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

After the division, we end up with 189244.76470588 and a remainder of 9.2e-08.