86362946 ÷ 603 
Our goal is to divide 86362946 by 603.

Advancing to step 1:
When dividing 8 by 603, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 603

Advancing to step 2:
603 can be fit into 86 0 times, resulting in a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Bring next digit (3) of the dividend behind the 86 and repeat the process: 863 / 603

On to step 3:
863 divided by 603 is 1 with a remainder of 260.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 603 from 863, we get 260.
Grab the next digit (6) from the dividend, add it to 260, then carry on: 2606 / 603

Step 4:
603 can be fit into 2606 4 times, resulting in a remainder of 194.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 2412 away from 2606, we end up with 194.
Grab the next digit (2) from the dividend, add it to 194, then carry on: 1942 / 603

Moving on to step 5:
603 can be fit into 1942 3 times, resulting in a remainder of 133.
Record the quotient 3 as the next digit in the result. 
Result so far: 143.0
Subtract 1809 from 1942 to get 133.
Take the next digit (9) from the dividend and append it to 133, then repeat: 1339 / 603

Advancing to step 6:
When dividing 1339 by 603, we get 2 with a remainder of 133.
The next digit of our result is 2. 
Result so far: 1432.0
Subtract 1206 from 1339 to get 133.
Take the next digit (4) from the dividend and append it to 133, then repeat: 1334 / 603

Going ahead to step 7:
1334 divided by 603 is 2 with a remainder of 128.
Record the quotient 2 as the next digit in the result. 
Result so far: 14322.0
Subtracting 1206 from 1334 leaves us with 128.
Bring next digit (6) of the dividend behind the 128 and repeat the process: 1286 / 603

Advancing to step 8:
When dividing 1286 by 603, we get 2 with a remainder of 80.
Put 2 as the next digit of the answer. 
Result so far: 143222.0
If we subtract 1206 from 1286, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 9:
603 goes into 800 1 times with a remainder of 197.
Put 1 as the next digit of the answer. 
Result so far: 143222.1
Deduct 603 from 800 and we're left with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

On to step 10:
1970 divided by 603 is 3 with a remainder of 161.
Write down 3 as next digit of the result. 
Result so far: 143222.13
Deduct 1809 from 1970 and we're left with 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

Let's proceed to step 11:
1610 divided by 603 is 2 with a remainder of 404.
Record the quotient 2 as the next digit in the result. 
Result so far: 143222.132
If we subtract 1206 from 1610, we get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

Step 12:
603 goes into 4040 6 times with a remainder of 422.
Write down 6 as next digit of the result. 
Result so far: 143222.1326
The remainder is 422 after subtracting 3618 from 4040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Going ahead to step 13:
The number 603 fits into 4220 6 times, leaving a remainder of 602.
Record the quotient 6 as the next digit in the result. 
Result so far: 143222.13266
Subtract 3618 from 4220 to get 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

The final outcome is 143222.13266, with a leftover of 0.000602.