521943 divided by 77 
Let's see how many times 77 fits into 521943.

On to step 1:
If we divide 5 by 77, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 77

Going ahead to step 2:
If we divide 52 by 77, we get 0 and a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 52, we end up with 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 77

Step 3:
77 goes into 521 6 times with a remainder of 59.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 462 from 521 and we're left with 59.
Grab the next digit (9) from the dividend, add it to 59, then carry on: 599 / 77

Going ahead to step 4:
77 can be fit into 599 7 times, resulting in a remainder of 60.
Write down 7 as next digit of the result. 
Result so far: 67.0
Deduct 539 from 599 and we're left with 60.
Append the next digit (4) from the dividend to 60 and continue with: 604 / 77

Step 5:
604 divided by 77 is 7 with a remainder of 65.
The number 7 becomes the next digit in our result. 
Result so far: 677.0
The remainder is 65 after subtracting 539 from 604.
Append the next digit (3) from the dividend to 65 and continue with: 653 / 77

Going ahead to step 6:
If we divide 653 by 77, we get 8 and a remainder of 37.
The number 8 becomes the next digit in our result. 
Result so far: 6778.0
If we take 616 away from 653, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 7:
If we divide 370 by 77, we get 4 and a remainder of 62.
The number 4 becomes the next digit in our result. 
Result so far: 6778.4
If we subtract 308 from 370, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 8:
When dividing 620 by 77, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 6778.48
Subtract 616 from 620 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
The number 77 fits into 40 0 times, leaving a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 6778.48
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 10:
The number 77 fits into 400 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 6778.4805
If we take 385 away from 400, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
When dividing 150 by 77, we get 1 with a remainder of 73.
The next digit of our result is 1. 
Result so far: 6778.48051
Deduct 77 from 150 and we're left 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 12:
When dividing 730 by 77, we get 9 with a remainder of 37.
The number 9 becomes the next digit in our result. 
Result so far: 6778.480519
The remainder is 37 after subtracting 693 from 730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 13:
77 can be fit into 370 4 times, resulting in a remainder of 62.
Put 4 as the next digit of the answer. 
Result so far: 6778.4805194
If we take 308 away from 370, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 14:
77 can be fit into 620 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 6778.48051948
Deduct 616 from 620 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 6778.48051948, with a leftover of 4e-09.