Let's divide 90654378 by 620
We want to divide 90654378 by 620.

Advancing to step 1:
620 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 620

On to step 2:
90 divided by 620 is 0 with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Include the next digit (6) from the dividend after 90, then repeat: 906 / 620

Advancing to step 3:
620 goes into 906 1 times with a remainder of 286.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 286 after subtracting 620 from 906.
Append the next digit (5) from the dividend to 286 and continue with: 2865 / 620

Advancing to step 4:
620 can be fit into 2865 4 times, resulting in a remainder of 385.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
The remainder is 385 after subtracting 2480 from 2865.
Include the next digit (4) from the dividend after 385, then repeat: 3854 / 620

Step 5:
The number 620 fits into 3854 6 times, leaving a remainder of 134.
Record the quotient 6 as the next digit in the result. 
Result so far: 146.0
If we subtract 3720 from 3854, we get 134.
Bring next digit (3) of the dividend behind the 134 and repeat the process: 1343 / 620

On to step 6:
1343 divided by 620 is 2 with a remainder of 103.
The next digit of our result is 2. 
Result so far: 1462.0
Subtract 1240 from 1343 to get 103.
Bring next digit (7) of the dividend behind the 103 and repeat the process: 1037 / 620

Advancing to step 7:
When dividing 1037 by 620, we get 1 with a remainder of 417.
Put 1 as the next digit of the answer. 
Result so far: 14621.0
The remainder is 417 after subtracting 620 from 1037.
Fetch the next digit (8) from the dividend, attach it to 417 and continue: 4178 / 620

On to step 8:
If we divide 4178 by 620, we get 6 and a remainder of 458.
Write down 6 as next digit of the result. 
Result so far: 146216.0
Subtracting 3720 from 4178 leaves us with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

Step 9:
620 goes into 4580 7 times with a remainder of 240.
Use 7 as the next digit of our solution. 
Result so far: 146216.7
The remainder is 240 after subtracting 4340 from 4580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 10:
620 can be fit into 2400 3 times, resulting in a remainder of 540.
Put 3 as the next digit of the answer. 
Result so far: 146216.73
Deduct 1860 from 2400 and we're left with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 11:
620 can be fit into 5400 8 times, resulting in a remainder of 440.
Put 8 as the next digit of the answer. 
Result so far: 146216.738
If we subtract 4960 from 5400, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 12:
If we divide 4400 by 620, we get 7 and a remainder of 60.
Put 7 as the next digit of the answer. 
Result so far: 146216.7387
The remainder is 60 after subtracting 4340 from 4400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
600 divided by 620 is 0 with a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 146216.7387
Subtracting 0 from 600 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 14:
The number 620 fits into 6000 9 times, leaving a remainder of 420.
Put 9 as the next digit of the answer. 
Result so far: 146216.738709
If we subtract 5580 from 6000, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Let's proceed to step 15:
620 can be fit into 4200 6 times, resulting in a remainder of 480.
Put 6 as the next digit of the answer. 
Result so far: 146216.7387096
Deduct 3720 from 4200 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 16:
If we divide 4800 by 620, we get 7 and a remainder of 460.
The number 7 becomes the next digit in our result. 
Result so far: 146216.73870967
If we subtract 4340 from 4800, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

After the division, we end up with 146216.73870967 and a remainder of 4.6e-07.