We divide 51478319 by 421
Let's see how many times 421 fits into 51478319.

On to step 1:
421 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 421

On to step 2:
The number 421 fits into 51 0 times, leaving a remainder of 51.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Include the next digit (4) from the dividend after 51, then repeat: 514 / 421

Moving on to step 3:
The number 421 fits into 514 1 times, leaving a remainder of 93.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 421 from 514 and we're left with 93.
Include the next digit (7) from the dividend after 93, then repeat: 937 / 421

Step 4:
When dividing 937 by 421, we get 2 with a remainder of 95.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 95 after subtracting 842 from 937.
Grab the next digit (8) from the dividend, add it to 95, then carry on: 958 / 421

Moving on to step 5:
421 goes into 958 2 times with a remainder of 116.
Record the quotient 2 as the next digit in the result. 
Result so far: 122.0
If we take 842 away from 958, we end up with 116.
Grab the next digit (3) from the dividend, add it to 116, then carry on: 1163 / 421

Going ahead to step 6:
When dividing 1163 by 421, we get 2 with a remainder of 321.
Put 2 as the next digit of the answer. 
Result so far: 1222.0
Subtract 842 from 1163 to get 321.
Append the next digit (1) from the dividend to 321 and continue with: 3211 / 421

Going ahead to step 7:
The number 421 fits into 3211 7 times, leaving a remainder of 264.
The number 7 becomes the next digit in our result. 
Result so far: 12227.0
Deduct 2947 from 3211 and we're left with 264.
Fetch the next digit (9) from the dividend, attach it to 264 and continue: 2649 / 421

Going ahead to step 8:
When dividing 2649 by 421, we get 6 with a remainder of 123.
Use 6 as the next digit of our solution. 
Result so far: 122276.0
Subtract 2526 from 2649 to get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Let's proceed to step 9:
If we divide 1230 by 421, we get 2 and a remainder of 388.
Record the quotient 2 as the next digit in the result. 
Result so far: 122276.2
If we subtract 842 from 1230, we get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Going ahead to step 10:
3880 divided by 421 is 9 with a remainder of 91.
The next digit of our result is 9. 
Result so far: 122276.29
Deduct 3789 from 3880 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Moving on to step 11:
421 can be fit into 910 2 times, resulting in a remainder of 68.
Record the quotient 2 as the next digit in the result. 
Result so far: 122276.292
Subtracting 842 from 910 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 12:
When dividing 680 by 421, we get 1 with a remainder of 259.
The next digit of our result is 1. 
Result so far: 122276.2921
If we subtract 421 from 680, we get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

On to step 13:
When dividing 2590 by 421, we get 6 with a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 122276.29216
Deduct 2526 from 2590 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 14:
The number 421 fits into 640 1 times, leaving a remainder of 219.
The number 1 becomes the next digit in our result. 
Result so far: 122276.292161
Subtract 421 from 640 to get 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Going ahead to step 15:
421 goes into 2190 5 times with a remainder of 85.
The next digit of our result is 5. 
Result so far: 122276.2921615
Subtract 2105 from 2190 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Moving on to step 16:
850 divided by 421 is 2 with a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 122276.29216152
Subtracting 842 from 850 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Our division results in 122276.29216152 with a remaining 8e-09.