We look at the division of 2521136 by 343 
We want to divide 2521136 by 343.

Advancing to step 1:
If we divide 2 by 343, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 343

On to step 2:
25 divided by 343 is 0 with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Take the next digit (2) from the dividend and append it to 25, then repeat: 252 / 343

Moving on to step 3:
343 goes into 252 0 times with a remainder of 252.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 252, we end up with 252.
Take the next digit (1) from the dividend and append it to 252, then repeat: 2521 / 343

Going ahead to step 4:
343 goes into 2521 7 times with a remainder of 120.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 120 after subtracting 2401 from 2521.
Take the next digit (1) from the dividend and append it to 120, then repeat: 1201 / 343

Going ahead to step 5:
When dividing 1201 by 343, we get 3 with a remainder of 172.
Use 3 as the next digit of our solution. 
Result so far: 73.0
Deduct 1029 from 1201 and we're left with 172.
Take the next digit (3) from the dividend and append it to 172, then repeat: 1723 / 343

On to step 6:
If we divide 1723 by 343, we get 5 and a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 735.0
Subtract 1715 from 1723 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 343

Let's proceed to step 7:
The number 343 fits into 86 0 times, leaving a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 7350.0
If we take 0 away from 86, we end up with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 8:
343 goes into 860 2 times with a remainder of 174.
Use 2 as the next digit of our solution. 
Result so far: 7350.2
Subtract 686 from 860 to get 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 9:
343 can be fit into 1740 5 times, resulting in a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 7350.25
The remainder is 25 after subtracting 1715 from 1740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 10:
250 divided by 343 is 0 with a remainder of 250.
The next digit of our result is 0. 
Result so far: 7350.25
If we take 0 away from 250, we end up with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 11:
If we divide 2500 by 343, we get 7 and a remainder of 99.
The number 7 becomes the next digit in our result. 
Result so far: 7350.2507
If we take 2401 away from 2500, we end up with 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Step 12:
343 goes into 990 2 times with a remainder of 304.
The number 2 becomes the next digit in our result. 
Result so far: 7350.25072
Deduct 686 from 990 and we're left with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Step 13:
When dividing 3040 by 343, we get 8 with a remainder of 296.
Put 8 as the next digit of the answer. 
Result so far: 7350.250728
If we take 2744 away from 3040, we end up with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Going ahead to step 14:
The number 343 fits into 2960 8 times, leaving a remainder of 216.
Record the quotient 8 as the next digit in the result. 
Result so far: 7350.2507288
Subtract 2744 from 2960 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

The final result is 7350.2507288 with a remainder of 2.16e-06.