42872171 ÷ 778 
We want to divide 42872171 by 778.

Step 1:
The number 778 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 778

Step 2:
If we divide 42 by 778, we get 0 and a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (8) of the dividend behind the 42 and repeat the process: 428 / 778

Advancing to step 3:
If we divide 428 by 778, we get 0 and a remainder of 428.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 428 leaves us with 428.
Fetch the next digit (7) from the dividend, attach it to 428 and continue: 4287 / 778

Moving on to step 4:
The number 778 fits into 4287 5 times, leaving a remainder of 397.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 3890 from 4287 to get 397.
Take the next digit (2) from the dividend and append it to 397, then repeat: 3972 / 778

Advancing to step 5:
778 can be fit into 3972 5 times, resulting in a remainder of 82.
Write down 5 as next digit of the result. 
Result so far: 55.0
If we subtract 3890 from 3972, we get 82.
Bring next digit (1) of the dividend behind the 82 and repeat the process: 821 / 778

Going ahead to step 6:
778 goes into 821 1 times with a remainder of 43.
Put 1 as the next digit of the answer. 
Result so far: 551.0
The remainder is 43 after subtracting 778 from 821.
Append the next digit (7) from the dividend to 43 and continue with: 437 / 778

Step 7:
When dividing 437 by 778, we get 0 with a remainder of 437.
Put 0 as the next digit of the answer. 
Result so far: 5510.0
Subtract 0 from 437 to get 437.
Include the next digit (1) from the dividend after 437, then repeat: 4371 / 778

Let's proceed to step 8:
If we divide 4371 by 778, we get 5 and a remainder of 481.
Write down 5 as next digit of the result. 
Result so far: 55105.0
Subtracting 3890 from 4371 leaves us with 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

Step 9:
778 can be fit into 4810 6 times, resulting in a remainder of 142.
The next digit of our result is 6. 
Result so far: 55105.6
If we take 4668 away from 4810, we end up with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Going ahead to step 10:
778 can be fit into 1420 1 times, resulting in a remainder of 642.
Write down 1 as next digit of the result. 
Result so far: 55105.61
Subtract 778 from 1420 to get 642.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

Moving on to step 11:
778 goes into 6420 8 times with a remainder of 196.
Use 8 as the next digit of our solution. 
Result so far: 55105.618
If we subtract 6224 from 6420, we get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

Moving on to step 12:
778 can be fit into 1960 2 times, resulting in a remainder of 404.
Put 2 as the next digit of the answer. 
Result so far: 55105.6182
If we take 1556 away from 1960, we end up with 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Let's proceed to step 13:
When dividing 4040 by 778, we get 5 with a remainder of 150.
The next digit of our result is 5. 
Result so far: 55105.61825
If we take 3890 away from 4040, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 14:
778 goes into 1500 1 times with a remainder of 722.
Write down 1 as next digit of the result. 
Result so far: 55105.618251
Subtract 778 from 1500 to get 722.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7220, and continue the process.

Advancing to step 15:
778 goes into 7220 9 times with a remainder of 218.
Use 9 as the next digit of our solution. 
Result so far: 55105.6182519
If we subtract 7002 from 7220, we get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Going ahead to step 16:
778 goes into 2180 2 times with a remainder of 624.
Record the quotient 2 as the next digit in the result. 
Result so far: 55105.61825192
If we take 1556 away from 2180, we end up with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

The final result is 55105.61825192 with a remainder of 6.24e-07.