We look at the division of 431407 by 77 
We're looking to find how many times 77 goes into 431407.

Advancing to step 1:
The number 77 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 77

Advancing to step 2:
77 goes into 43 0 times with a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Take the next digit (1) from the dividend and append it to 43, then repeat: 431 / 77

Let's proceed to step 3:
77 can be fit into 431 5 times, resulting in a remainder of 46.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 385 away from 431, we end up with 46.
Grab the next digit (4) from the dividend, add it to 46, then carry on: 464 / 77

Advancing to step 4:
When dividing 464 by 77, we get 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 56.0
If we take 462 away from 464, we end up with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 77

On to step 5:
77 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 560.0
Deduct 0 from 20 and we're left with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 77

Moving on to step 6:
77 goes into 207 2 times with a remainder of 53.
Put 2 as the next digit of the answer. 
Result so far: 5602.0
Deduct 154 from 207 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 7:
77 goes into 530 6 times with a remainder of 68.
Record the quotient 6 as the next digit in the result. 
Result so far: 5602.6
Subtract 462 from 530 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 8:
77 goes into 680 8 times with a remainder of 64.
Use 8 as the next digit of our solution. 
Result so far: 5602.68
Subtract 616 from 680 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 9:
640 divided by 77 is 8 with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 5602.688
Subtracting 616 from 640 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 5602.688, with a leftover of 0.0024.