We're dividing 77121545 by 996 
The aim is to understand the frequency of 996 in 77121545.

Let's proceed to step 1:
The number 996 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 996

On to step 2:
996 can be fit into 77 0 times, resulting in a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Bring next digit (1) of the dividend behind the 77 and repeat the process: 771 / 996

Let's proceed to step 3:
771 divided by 996 is 0 with a remainder of 771.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 771 to get 771.
Grab the next digit (2) from the dividend, add it to 771, then carry on: 7712 / 996

Moving on to step 4:
7712 divided by 996 is 7 with a remainder of 740.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 6972 from 7712 leaves us with 740.
Fetch the next digit (1) from the dividend, attach it to 740 and continue: 7401 / 996

Advancing to step 5:
7401 divided by 996 is 7 with a remainder of 429.
Record the quotient 7 as the next digit in the result. 
Result so far: 77.0
The remainder is 429 after subtracting 6972 from 7401.
Fetch the next digit (5) from the dividend, attach it to 429 and continue: 4295 / 996

Moving on to step 6:
When dividing 4295 by 996, we get 4 with a remainder of 311.
Record the quotient 4 as the next digit in the result. 
Result so far: 774.0
Subtracting 3984 from 4295 leaves us with 311.
Fetch the next digit (4) from the dividend, attach it to 311 and continue: 3114 / 996

On to step 7:
996 goes into 3114 3 times with a remainder of 126.
Put 3 as the next digit of the answer. 
Result so far: 7743.0
Subtract 2988 from 3114 to get 126.
Include the next digit (5) from the dividend after 126, then repeat: 1265 / 996

On to step 8:
If we divide 1265 by 996, we get 1 and a remainder of 269.
Put 1 as the next digit of the answer. 
Result so far: 77431.0
If we subtract 996 from 1265, we get 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Going ahead to step 9:
2690 divided by 996 is 2 with a remainder of 698.
Put 2 as the next digit of the answer. 
Result so far: 77431.2
Subtract 1992 from 2690 to get 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Let's proceed to step 10:
If we divide 6980 by 996, we get 7 and a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 77431.27
The remainder is 8 after subtracting 6972 from 6980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 11:
80 divided by 996 is 0 with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 77431.27
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 12:
996 can be fit into 800 0 times, resulting in a remainder of 800.
Put 0 as the next digit of the answer. 
Result so far: 77431.27
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The quotient of the division is 77431.27, and the remainder is 0.008.