4234183 divided by 621 
We want to figure out the number of times 4234183 can be divided by 621.

Let's proceed to step 1:
If we divide 4 by 621, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 621

Going ahead to step 2:
The number 621 fits into 42 0 times, leaving a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (3) from the dividend, add it to 42, then carry on: 423 / 621

On to step 3:
423 divided by 621 is 0 with a remainder of 423.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 423, we end up with 423.
Append the next digit (4) from the dividend to 423 and continue with: 4234 / 621

Advancing to step 4:
621 can be fit into 4234 6 times, resulting in a remainder of 508.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 3726 from 4234 to get 508.
Take the next digit (1) from the dividend and append it to 508, then repeat: 5081 / 621

On to step 5:
When dividing 5081 by 621, we get 8 with a remainder of 113.
The number 8 becomes the next digit in our result. 
Result so far: 68.0
Deduct 4968 from 5081 and we're left with 113.
Bring next digit (8) of the dividend behind the 113 and repeat the process: 1138 / 621

Let's proceed to step 6:
If we divide 1138 by 621, we get 1 and a remainder of 517.
Use 1 as the next digit of our solution. 
Result so far: 681.0
If we take 621 away from 1138, we end up with 517.
Append the next digit (3) from the dividend to 517 and continue with: 5173 / 621

Let's proceed to step 7:
If we divide 5173 by 621, we get 8 and a remainder of 205.
Put 8 as the next digit of the answer. 
Result so far: 6818.0
Deduct 4968 from 5173 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 8:
621 goes into 2050 3 times with a remainder of 187.
Use 3 as the next digit of our solution. 
Result so far: 6818.3
The remainder is 187 after subtracting 1863 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1870, and continue the process.

Step 9:
621 can be fit into 1870 3 times, resulting in a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 6818.33
Deduct 1863 from 1870 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 6818.33, with a leftover of 0.007.