901048 divided by 77 
The aim is to understand the frequency of 77 in 901048.

On to step 1:
77 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 77

Let's proceed to step 2:
90 divided by 77 is 1 with a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 77 away from 90, we end up with 13.
Take the next digit (1) from the dividend and append it to 13, then repeat: 131 / 77

Moving on to step 3:
131 divided by 77 is 1 with a remainder of 54.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 77 from 131 to get 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 77

Advancing to step 4:
77 can be fit into 540 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 117.0
Subtract 539 from 540 to get 1.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 77

Let's proceed to step 5:
The number 77 fits into 14 0 times, leaving a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 1170.0
If we subtract 0 from 14, we get 14.
Append the next digit (8) from the dividend to 14 and continue with: 148 / 77

Advancing to step 6:
If we divide 148 by 77, we get 1 and a remainder of 71.
Record the quotient 1 as the next digit in the result. 
Result so far: 11701.0
Subtracting 77 from 148 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 7:
77 can be fit into 710 9 times, resulting in a remainder of 17.
The next digit of our result is 9. 
Result so far: 11701.9
Subtracting 693 from 710 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 8:
If we divide 170 by 77, we get 2 and a remainder of 16.
The next digit of our result is 2. 
Result so far: 11701.92
If we take 154 away from 170, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 9:
If we divide 160 by 77, we get 2 and a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 11701.922
Deduct 154 from 160 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 11701.922 with a remainder of 0.0006.