77446531 ÷ 153 
We're looking to find how many times 153 goes into 77446531.

Going ahead to step 1:
153 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
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 / 153

On to step 2:
The number 153 fits into 77 0 times, leaving a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Bring next digit (4) of the dividend behind the 77 and repeat the process: 774 / 153

Advancing to step 3:
153 can be fit into 774 5 times, resulting in a remainder of 9.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 765 from 774 to get 9.
Bring next digit (4) of the dividend behind the 9 and repeat the process: 94 / 153

On to step 4:
If we divide 94 by 153, we get 0 and a remainder of 94.
Write down 0 as next digit of the result. 
Result so far: 50.0
The remainder is 94 after subtracting 0 from 94.
Take the next digit (6) from the dividend and append it to 94, then repeat: 946 / 153

Advancing to step 5:
If we divide 946 by 153, we get 6 and a remainder of 28.
The next digit of our result is 6. 
Result so far: 506.0
If we take 918 away from 946, we end up with 28.
Take the next digit (5) from the dividend and append it to 28, then repeat: 285 / 153

Moving on to step 6:
285 divided by 153 is 1 with a remainder of 132.
The number 1 becomes the next digit in our result. 
Result so far: 5061.0
Deduct 153 from 285 and we're left with 132.
Take the next digit (3) from the dividend and append it to 132, then repeat: 1323 / 153

Advancing to step 7:
If we divide 1323 by 153, we get 8 and a remainder of 99.
Write down 8 as next digit of the result. 
Result so far: 50618.0
Subtract 1224 from 1323 to get 99.
Fetch the next digit (1) from the dividend, attach it to 99 and continue: 991 / 153

Let's proceed to step 8:
The number 153 fits into 991 6 times, leaving a remainder of 73.
Write down 6 as next digit of the result. 
Result so far: 506186.0
Subtracting 918 from 991 leaves us with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 9:
153 can be fit into 730 4 times, resulting in a remainder of 118.
The next digit of our result is 4. 
Result so far: 506186.4
The remainder is 118 after subtracting 612 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Advancing to step 10:
When dividing 1180 by 153, we get 7 with a remainder of 109.
Use 7 as the next digit of our solution. 
Result so far: 506186.47
If we take 1071 away from 1180, we end up with 109.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1090, and continue the process.

Moving on to step 11:
The number 153 fits into 1090 7 times, leaving a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 506186.477
If we subtract 1071 from 1090, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final outcome is 506186.477, with a leftover of 0.0019.