31260102 divided by 343 
Our goal is to divide 31260102 by 343.

Step 1:
343 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 343

On to step 2:
When dividing 31 by 343, we get 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 343

Step 3:
The number 343 fits into 312 0 times, leaving a remainder of 312.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 312, we end up with 312.
Grab the next digit (6) from the dividend, add it to 312, then carry on: 3126 / 343

On to step 4:
343 can be fit into 3126 9 times, resulting in a remainder of 39.
Put 9 as the next digit of the answer. 
Result so far: 9.0
If we take 3087 away from 3126, we end up with 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 343

Step 5:
If we divide 390 by 343, we get 1 and a remainder of 47.
Write down 1 as next digit of the result. 
Result so far: 91.0
Subtracting 343 from 390 leaves us with 47.
Include the next digit (1) from the dividend after 47, then repeat: 471 / 343

Advancing to step 6:
343 goes into 471 1 times with a remainder of 128.
The number 1 becomes the next digit in our result. 
Result so far: 911.0
If we take 343 away from 471, we end up with 128.
Fetch the next digit (0) from the dividend, attach it to 128 and continue: 1280 / 343

Moving on to step 7:
343 goes into 1280 3 times with a remainder of 251.
Use 3 as the next digit of our solution. 
Result so far: 9113.0
The remainder is 251 after subtracting 1029 from 1280.
Grab the next digit (2) from the dividend, add it to 251, then carry on: 2512 / 343

Moving on to step 8:
The number 343 fits into 2512 7 times, leaving a remainder of 111.
The number 7 becomes the next digit in our result. 
Result so far: 91137.0
The remainder is 111 after subtracting 2401 from 2512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

On to step 9:
1110 divided by 343 is 3 with a remainder of 81.
The next digit of our result is 3. 
Result so far: 91137.3
If we take 1029 away from 1110, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 10:
If we divide 810 by 343, we get 2 and a remainder of 124.
Record the quotient 2 as the next digit in the result. 
Result so far: 91137.32
Subtract 686 from 810 to get 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Step 11:
The number 343 fits into 1240 3 times, leaving a remainder of 211.
Use 3 as the next digit of our solution. 
Result so far: 91137.323
If we take 1029 away from 1240, we end up with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Step 12:
2110 divided by 343 is 6 with a remainder of 52.
Write down 6 as next digit of the result. 
Result so far: 91137.3236
The remainder is 52 after subtracting 2058 from 2110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 13:
520 divided by 343 is 1 with a remainder of 177.
The next digit of our result is 1. 
Result so far: 91137.32361
If we subtract 343 from 520, we get 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

Advancing to step 14:
1770 divided by 343 is 5 with a remainder of 55.
The number 5 becomes the next digit in our result. 
Result so far: 91137.323615
Deduct 1715 from 1770 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Moving on to step 15:
The number 343 fits into 550 1 times, leaving a remainder of 207.
Record the quotient 1 as the next digit in the result. 
Result so far: 91137.3236151
Subtracting 343 from 550 leaves us with 207.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2070, and continue the process.

Going ahead to step 16:
When dividing 2070 by 343, we get 6 with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 91137.32361516
If we take 2058 away from 2070, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 91137.32361516, and the remainder is 1.2e-08.