Let's divide 77881994 by 845
The aim is to understand the frequency of 845 in 77881994.

Going ahead to step 1:
845 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Fetch the next digit (7) from the dividend, attach it to 7 and continue: 77 / 845

Going ahead to step 2:
When dividing 77 by 845, we get 0 with a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Append the next digit (8) from the dividend to 77 and continue with: 778 / 845

Advancing to step 3:
845 can be fit into 778 0 times, resulting in a remainder of 778.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 778, we end up with 778.
Grab the next digit (8) from the dividend, add it to 778, then carry on: 7788 / 845

Let's proceed to step 4:
7788 divided by 845 is 9 with a remainder of 183.
The next digit of our result is 9. 
Result so far: 9.0
Subtract 7605 from 7788 to get 183.
Include the next digit (1) from the dividend after 183, then repeat: 1831 / 845

Moving on to step 5:
845 can be fit into 1831 2 times, resulting in a remainder of 141.
The next digit of our result is 2. 
Result so far: 92.0
The remainder is 141 after subtracting 1690 from 1831.
Grab the next digit (9) from the dividend, add it to 141, then carry on: 1419 / 845

On to step 6:
845 goes into 1419 1 times with a remainder of 574.
Put 1 as the next digit of the answer. 
Result so far: 921.0
If we subtract 845 from 1419, we get 574.
Grab the next digit (9) from the dividend, add it to 574, then carry on: 5749 / 845

Going ahead to step 7:
5749 divided by 845 is 6 with a remainder of 679.
The next digit of our result is 6. 
Result so far: 9216.0
If we subtract 5070 from 5749, we get 679.
Bring next digit (4) of the dividend behind the 679 and repeat the process: 6794 / 845

Step 8:
When dividing 6794 by 845, we get 8 with a remainder of 34.
Use 8 as the next digit of our solution. 
Result so far: 92168.0
Deduct 6760 from 6794 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 9:
340 divided by 845 is 0 with a remainder of 340.
The next digit of our result is 0. 
Result so far: 92168.0
Deduct 0 from 340 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 10:
845 goes into 3400 4 times with a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 92168.04
If we subtract 3380 from 3400, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 11:
If we divide 200 by 845, we get 0 and a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 92168.04
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 12:
The number 845 fits into 2000 2 times, leaving a remainder of 310.
The next digit of our result is 2. 
Result so far: 92168.0402
If we take 1690 away from 2000, we end up with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Going ahead to step 13:
845 goes into 3100 3 times with a remainder of 565.
The next digit of our result is 3. 
Result so far: 92168.04023
If we subtract 2535 from 3100, we get 565.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5650, and continue the process.

Advancing to step 14:
845 can be fit into 5650 6 times, resulting in a remainder of 580.
Put 6 as the next digit of the answer. 
Result so far: 92168.040236
Subtract 5070 from 5650 to get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 15:
5800 divided by 845 is 6 with a remainder of 730.
The number 6 becomes the next digit in our result. 
Result so far: 92168.0402366
If we take 5070 away from 5800, we end up with 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Our division results in 92168.0402366 with a remaining 7.3e-06.