61886920 divided by 343 
We want to figure out the number of times 61886920 can be divided by 343.

Step 1:
If we divide 6 by 343, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 343

Going ahead to step 2:
61 divided by 343 is 0 with a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 61 after subtracting 0 from 61.
Bring next digit (8) of the dividend behind the 61 and repeat the process: 618 / 343

Let's proceed to step 3:
The number 343 fits into 618 1 times, leaving a remainder of 275.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 343 from 618, we get 275.
Grab the next digit (8) from the dividend, add it to 275, then carry on: 2758 / 343

Advancing to step 4:
2758 divided by 343 is 8 with a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 14 after subtracting 2744 from 2758.
Bring next digit (6) of the dividend behind the 14 and repeat the process: 146 / 343

Advancing to step 5:
343 can be fit into 146 0 times, resulting in a remainder of 146.
The next digit of our result is 0. 
Result so far: 180.0
Subtract 0 from 146 to get 146.
Bring next digit (9) of the dividend behind the 146 and repeat the process: 1469 / 343

Advancing to step 6:
343 goes into 1469 4 times with a remainder of 97.
The next digit of our result is 4. 
Result so far: 1804.0
Subtracting 1372 from 1469 leaves us with 97.
Fetch the next digit (2) from the dividend, attach it to 97 and continue: 972 / 343

Moving on to step 7:
343 goes into 972 2 times with a remainder of 286.
Put 2 as the next digit of the answer. 
Result so far: 18042.0
Deduct 686 from 972 and we're left with 286.
Take the next digit (0) from the dividend and append it to 286, then repeat: 2860 / 343

Let's proceed to step 8:
2860 divided by 343 is 8 with a remainder of 116.
Record the quotient 8 as the next digit in the result. 
Result so far: 180428.0
Subtract 2744 from 2860 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 9:
The number 343 fits into 1160 3 times, leaving a remainder of 131.
Use 3 as the next digit of our solution. 
Result so far: 180428.3
If we subtract 1029 from 1160, we get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Step 10:
343 goes into 1310 3 times with a remainder of 281.
Put 3 as the next digit of the answer. 
Result so far: 180428.33
Deduct 1029 from 1310 and we're left with 281.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2810, and continue the process.

The final outcome is 180428.33, with a leftover of 0.281.