We divide 370994 by 91
The aim is to understand the frequency of 91 in 370994.

Step 1:
91 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 91

On to step 2:
37 divided by 91 is 0 with a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 37 leaves us with 37.
Grab the next digit (0) from the dividend, add it to 37, then carry on: 370 / 91

Step 3:
The number 91 fits into 370 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 364 from 370 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 91

Let's proceed to step 4:
91 can be fit into 69 0 times, resulting in a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 40.0
Subtract 0 from 69 to get 69.
Grab the next digit (9) from the dividend, add it to 69, then carry on: 699 / 91

Step 5:
The number 91 fits into 699 7 times, leaving a remainder of 62.
Write down 7 as next digit of the result. 
Result so far: 407.0
If we take 637 away from 699, we end up with 62.
Grab the next digit (4) from the dividend, add it to 62, then carry on: 624 / 91

Going ahead to step 6:
If we divide 624 by 91, we get 6 and a remainder of 78.
Write down 6 as next digit of the result. 
Result so far: 4076.0
Deduct 546 from 624 and we're left with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 7:
91 can be fit into 780 8 times, resulting in a remainder of 52.
Write down 8 as next digit of the result. 
Result so far: 4076.8
Subtract 728 from 780 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 8:
If we divide 520 by 91, we get 5 and a remainder of 65.
The number 5 becomes the next digit in our result. 
Result so far: 4076.85
Subtracting 455 from 520 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 9:
When dividing 650 by 91, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 4076.857
If we subtract 637 from 650, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 10:
91 goes into 130 1 times with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 4076.8571
Deduct 91 from 130 and we're left with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 11:
When dividing 390 by 91, we get 4 with a remainder of 26.
The next digit of our result is 4. 
Result so far: 4076.85714
Subtracting 364 from 390 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 12:
91 goes into 260 2 times with a remainder of 78.
The next digit of our result is 2. 
Result so far: 4076.857142
If we take 182 away from 260, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 13:
When dividing 780 by 91, we get 8 with a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 4076.8571428
The remainder is 52 after subtracting 728 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 14:
If we divide 520 by 91, we get 5 and a remainder of 65.
The next digit of our result is 5. 
Result so far: 4076.85714285
The remainder is 65 after subtracting 455 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The final outcome is 4076.85714285, with a leftover of 6.5e-08.